diff --git a/01-greeting/index.js b/01-greeting/index.js
index 8f551af..6df56c8 100644
--- a/01-greeting/index.js
+++ b/01-greeting/index.js
@@ -1,4 +1,10 @@
 export function greet(name) {
   // implementar logica aqui
-  return "";
-}
+  let hello;
+  if (name)
+    hello = 'Hello ' + name;
+  else
+    hello = 'Adicione um nome na funcão';
+      
+  return hello;
+}
\ No newline at end of file
diff --git a/02-triangleArea/index.js b/02-triangleArea/index.js
index 7628fcd..e8ea750 100644
--- a/02-triangleArea/index.js
+++ b/02-triangleArea/index.js
@@ -1,3 +1,9 @@
 export function triangleArea(base, height) { 
   // your code here
+  if ((base > 0) && (height > 0)) {
+    let area = (base * height) / 2;
+    return area;
+  }
+  else 
+    return console.log('Base e altura devem ser maior a 0')
 } 
\ No newline at end of file
diff --git a/03-maxValue/index.js b/03-maxValue/index.js
index e433b31..8571f7c 100644
--- a/03-maxValue/index.js
+++ b/03-maxValue/index.js
@@ -1,4 +1,13 @@
 export function maxValue(values) {
   // implementar logica aqui
-  
+  let numeromaior = 0;
+        if (values[0] < numeromaior)
+          numeromaior = values[0];
+          let i = 0;
+        for (i = 0; i < values.length; i++){
+          if (numeromaior < values[i]){
+            numeromaior = values[i];
+          }
+        }
+      return numeromaior;  
 }
\ No newline at end of file
diff --git a/04-fibonacci/index.js b/04-fibonacci/index.js
index 37c64cc..413eee1 100644
--- a/04-fibonacci/index.js
+++ b/04-fibonacci/index.js
@@ -1,4 +1,13 @@
 export function fibonacci(value) {
   // implementar logica aqui
+  let fibo = [];
+  let i = 0;
+  for (i = 0 ; i <= value; i++) {
+    if (i < 2)
+      fibo[i] = i;
+    else 
+      fibo[i] = fibo[i-1] + fibo[i-2];                        
+  }
+  return fibo[value];
   
 }
\ No newline at end of file
diff --git a/05-isPrime/index.js b/05-isPrime/index.js
index ec9c4ac..bf896f6 100644
--- a/05-isPrime/index.js
+++ b/05-isPrime/index.js
@@ -1,4 +1,14 @@
 export function isPrime(value) {
   // implementar logica aqui
+  let div = 0;
+  let i;
+  for (i = 1; i <= value; i++) {
+    if ((value % i) == 0)
+      div++;
+  }
+  if (div === 2)
+    return true;
+  else
+    return false
   
 }
\ No newline at end of file
diff --git a/06-sum/index.js b/06-sum/index.js
index ebc2ee1..9211b82 100644
--- a/06-sum/index.js
+++ b/06-sum/index.js
@@ -1,4 +1,12 @@
 export function sum(values) {
   // implementar logica aqui
+  let suma = 0;
+  let i = 0;
+  if (values) {
+    for (i = 0; i < values.length; i++){
+      suma+= values[i];
+    }
+  }
+    return suma;
   
 }
\ No newline at end of file
diff --git a/07-sumEven/index.js b/07-sumEven/index.js
index bb1e095..03e94ca 100644
--- a/07-sumEven/index.js
+++ b/07-sumEven/index.js
@@ -1,4 +1,12 @@
 export function sumEven(value) {
   // implementar logica aqui
-  
+  let suma = 0;
+  let i;
+  if (value) {
+    for (i = 0; i < value.length; i++){
+      if (value[i] % 2 == 0)
+        suma+= value[i];
+    }
+  }
+  return suma;
 }
\ No newline at end of file
diff --git a/08-isAnagram/index.js b/08-isAnagram/index.js
index 918308a..d47e20b 100644
--- a/08-isAnagram/index.js
+++ b/08-isAnagram/index.js
@@ -1,4 +1,22 @@
 export function isAnagram(word1, word2) {
   // implementar logica aqui
+  if (word1 != word2){
+    if (word1.lenght == word2.lenght){
+        word1 = word1.toLowerCase();
+        word2 = word2.toLowerCase();
+        let teste = word1.split('');
+        let origin = word2.split('');
+        teste = teste.sort();
+        origin = origin.sort();
+        teste = teste.join();
+        origin = origin.join();
+        if (teste == origin)
+            return true;
+        else
+            return false;
+    }
+    else return false;
+}
+else return false;  
   
 }
\ No newline at end of file
diff --git a/09-mostRepeatedChar/index.js b/09-mostRepeatedChar/index.js
index b113ed8..9fe9539 100644
--- a/09-mostRepeatedChar/index.js
+++ b/09-mostRepeatedChar/index.js
@@ -1,4 +1,25 @@
 export function mostUsedChar(text) {
     // implementar logica aqui
-    return ""
+    if (text.length == 0)
+        return console.log('Escreva alguma coisa pra consultar');
+    else {
+        let cont = 1;
+        let letra;
+                
+        for (let i = 0; i < text.length; i++) {
+            let cont2 = 1;
+            for (let j = 0; j < text.length; j++) {
+                if (j !== i) {
+                    if (text[i] === text[j])
+                        cont2++;
+                    if (cont2 > cont) {
+                        cont = cont2;
+                        letra = text[i];
+                    }                                
+                }                        
+            }           
+        }
+        return letra;
+    }
+    
 }
\ No newline at end of file
diff --git a/10-longestWords/index.js b/10-longestWords/index.js
index a98d2d8..cfe1c28 100644
--- a/10-longestWords/index.js
+++ b/10-longestWords/index.js
@@ -1,4 +1,19 @@
 export function longestWords(words) {
     // implementar logica aqui
+    if (words.length == 0)
+        return console.log('Escreva as palavras a serem consultar');
+    else {
+        let cont = words[0].length;
+        for (let i = 1; i < words.length; i++) {
+            if (cont < words[i].length)
+                cont = words[i].length;
+        }
+        let longest = [];
+        for (let j = 0; j < words.length; j++) {
+            if (cont == words[j].length)
+                longest.push(words[j]);                                          
+        }           
+        return longest; 
+    }         
     
 }
\ No newline at end of file