diff --git a/01-greeting/index.js b/01-greeting/index.js
index 8f551af..5c0279c 100644
--- a/01-greeting/index.js
+++ b/01-greeting/index.js
@@ -1,4 +1,4 @@
 export function greet(name) {
   // implementar logica aqui
-  return "";
+  return `Hello ${name}`;
 }
diff --git a/02-triangleArea/index.js b/02-triangleArea/index.js
index 7628fcd..ee921fc 100644
--- a/02-triangleArea/index.js
+++ b/02-triangleArea/index.js
@@ -1,3 +1,5 @@
 export function triangleArea(base, height) { 
-  // your code here
+  let area = base * height / 2;
+
+  return area;
 } 
\ No newline at end of file
diff --git a/03-maxValue/index.js b/03-maxValue/index.js
index e433b31..b4b1259 100644
--- a/03-maxValue/index.js
+++ b/03-maxValue/index.js
@@ -1,4 +1,11 @@
 export function maxValue(values) {
-  // implementar logica aqui
+
+  if(values.length < 1){
+    return 0;
+  }
+
+  let maior = Math.max.apply(null, values)
+
+  return maior;
   
 }
\ No newline at end of file
diff --git a/04-fibonacci/index.js b/04-fibonacci/index.js
index 37c64cc..37085f9 100644
--- a/04-fibonacci/index.js
+++ b/04-fibonacci/index.js
@@ -1,4 +1,16 @@
 export function fibonacci(value) {
-  // implementar logica aqui
+  var a = 0, b = 1;
+
+  if(value === 0){
+    return a;
+  }
+  
+  for (var i = 2; i <= value; ++i) {
+      var temp = a;
+      a = b;
+      b += temp;
+  }
+  
+  return b;
   
 }
\ No newline at end of file
diff --git a/05-isPrime/index.js b/05-isPrime/index.js
index ec9c4ac..dc556a0 100644
--- a/05-isPrime/index.js
+++ b/05-isPrime/index.js
@@ -1,4 +1,17 @@
 export function isPrime(value) {
-  // implementar logica aqui
+  let cont = 0;
+
+  for(let i = 0; i <= value; i++){
+      if (value % i == 0){
+          cont++;
+      }
+  }
+
+  if(cont == 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..d0d3531 100644
--- a/06-sum/index.js
+++ b/06-sum/index.js
@@ -1,4 +1,10 @@
 export function sum(values) {
-  // implementar logica aqui
+  let soma = 0;
+
+  for(let i = 0; i < values.length; i++){
+      soma = soma + values[i];
+  }
+
+  return soma;
   
 }
\ No newline at end of file
diff --git a/07-sumEven/index.js b/07-sumEven/index.js
index bb1e095..7e5d020 100644
--- a/07-sumEven/index.js
+++ b/07-sumEven/index.js
@@ -1,4 +1,12 @@
 export function sumEven(value) {
-  // implementar logica aqui
+  let soma = 0;
+
+  for(let i = 0; i < value.length; i++){
+      if (value[i] % 2 === 0){
+          soma = soma + value[i];
+      }
+  }
+
+  return soma;
   
 }
\ No newline at end of file
diff --git a/08-isAnagram/index.js b/08-isAnagram/index.js
index 918308a..75342f4 100644
--- a/08-isAnagram/index.js
+++ b/08-isAnagram/index.js
@@ -1,4 +1,22 @@
 export function isAnagram(word1, word2) {
-  // implementar logica aqui
+  let test = word1.toUpperCase();
+  let original = word2.toUpperCase();
+
+  let tamanho1 = original.length;
+  let tamanho2 = test.length;
+  
+  if(tamanho1 !== tamanho2){
+      return false;
+  }
+
+  let str1 = original.split('').sort().join('');
+  let str2 = test.split('').sort().join('');
+
+  if(str1 === str2){
+      return true;
+  }
+  else{
+      return false;
+  }
   
 }
\ No newline at end of file
diff --git a/09-mostRepeatedChar/index.js b/09-mostRepeatedChar/index.js
index b113ed8..08bfaa5 100644
--- a/09-mostRepeatedChar/index.js
+++ b/09-mostRepeatedChar/index.js
@@ -1,4 +1,24 @@
 export function mostUsedChar(text) {
-    // implementar logica aqui
-    return ""
+    text.toLowerCase();
+            
+    let sorted = text.split('').sort().join('');
+
+    let cont = 1;
+    let repeatedTimes = 0;
+    let mostUsed = "";
+
+    for(let i = 0; i < sorted.length; i++){
+        if(sorted[i] === sorted[i + 1]){
+            cont++;
+        }
+        else{
+            if(cont > repeatedTimes){
+                repeatedTimes = cont;
+                mostUsed = sorted[i];
+            }
+            cont = 1;
+        }
+    }
+
+    return mostUsed;
 }
\ No newline at end of file
diff --git a/10-longestWords/index.js b/10-longestWords/index.js
index a98d2d8..6b15947 100644
--- a/10-longestWords/index.js
+++ b/10-longestWords/index.js
@@ -1,4 +1,19 @@
 export function longestWords(words) {
-    // implementar logica aqui
+    let maiorPalavra = 0;
+    let maiores = [];
+
+    for (let i = 0; i < words.length; i++){
+        if(words[i].length > maiorPalavra){
+            maiorPalavra = words[i].length
+        }
+    }
+
+    for (let i = 0; i < words.length; i++){
+        if(words[i].length === maiorPalavra){
+            maiores.push(words[i]);
+        }
+    }
+
+    return maiores;
     
 }
\ No newline at end of file