diff --git a/01-greeting/index.js b/01-greeting/index.js
index 8f551af..021dae1 100644
--- a/01-greeting/index.js
+++ b/01-greeting/index.js
@@ -1,4 +1,3 @@
 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..eafab7e 100644
--- a/02-triangleArea/index.js
+++ b/02-triangleArea/index.js
@@ -1,3 +1,3 @@
 export function triangleArea(base, height) { 
-  // your code here
+  return base * height /2;
 } 
\ No newline at end of file
diff --git a/03-maxValue/index.js b/03-maxValue/index.js
index e433b31..9dc5fea 100644
--- a/03-maxValue/index.js
+++ b/03-maxValue/index.js
@@ -1,4 +1,6 @@
 export function maxValue(values) {
-  // implementar logica aqui
-  
+  if(values.length === 0){
+    return 0;
+  }
+    return Math.max.apply(null, values);
 }
\ No newline at end of file
diff --git a/04-fibonacci/index.js b/04-fibonacci/index.js
index 37c64cc..11de2c9 100644
--- a/04-fibonacci/index.js
+++ b/04-fibonacci/index.js
@@ -1,4 +1,16 @@
 export function fibonacci(value) {
-  // implementar logica aqui
-  
+
+  let soma = 0;
+  let resultado = 0;
+  let proximo = 1;
+
+  for(let i = 0; i < value; i++){
+
+    soma = resultado + proximo;
+    resultado = proximo;
+    proximo = soma;
+
+  } 
+
+  return resultado;
 }
\ No newline at end of file
diff --git a/05-isPrime/index.js b/05-isPrime/index.js
index ec9c4ac..f77634f 100644
--- a/05-isPrime/index.js
+++ b/05-isPrime/index.js
@@ -1,4 +1,12 @@
 export function isPrime(value) {
-  // implementar logica aqui
-  
+
+  if(value === 1){
+    return false;
+
+  } for(let divisor = 2; divisor < value; divisor++){
+        if(value % divisor === 0){
+            return false;
+        }
+    } return true;
+    
 }
\ No newline at end of file
diff --git a/06-sum/index.js b/06-sum/index.js
index ebc2ee1..90ffdd5 100644
--- a/06-sum/index.js
+++ b/06-sum/index.js
@@ -1,4 +1,9 @@
 export function sum(values) {
-  // implementar logica aqui
+
+  let total = 0;
+
+  for(let i = 0; i < values.length; i++){
+    total += values[i];
+  } return total;
   
 }
\ No newline at end of file
diff --git a/07-sumEven/index.js b/07-sumEven/index.js
index bb1e095..615012b 100644
--- a/07-sumEven/index.js
+++ b/07-sumEven/index.js
@@ -1,4 +1,11 @@
 export function sumEven(value) {
-  // implementar logica aqui
+  
+  let total = 0;
+
+  for(let i = 0; i < value.length; i++){
+      if(value[i] % 2 === 0){
+        total += value[i];
+      }
+  } return total;
   
 }
\ No newline at end of file
diff --git a/08-isAnagram/index.js b/08-isAnagram/index.js
index 918308a..f0be87a 100644
--- a/08-isAnagram/index.js
+++ b/08-isAnagram/index.js
@@ -1,4 +1,8 @@
 export function isAnagram(word1, word2) {
-  // implementar logica aqui
   
+  let palavra1 = word1.toLowerCase().split('').sort().join('');
+  let palavra2 = word2.toLowerCase().split('').sort().join(''); 
+            
+  return (palavra1 === palavra2);
+
 }
\ No newline at end of file
diff --git a/09-mostRepeatedChar/index.js b/09-mostRepeatedChar/index.js
index b113ed8..252e917 100644
--- a/09-mostRepeatedChar/index.js
+++ b/09-mostRepeatedChar/index.js
@@ -1,4 +1,20 @@
 export function mostUsedChar(text) {
-    // implementar logica aqui
-    return ""
+    
+    const objeto = {};
+    let repeticoes = 0;
+    let maisRepetida = '';
+                        
+    for(let i of text){
+        objeto[i] = objeto[i] +1 || 1;
+    }
+
+    for(let i in objeto){
+        if(objeto[i] > repeticoes){
+            repeticoes = objeto[i];
+            maisRepetida = i;
+        }
+    }
+
+    return maisRepetida;
+
 }
\ No newline at end of file
diff --git a/10-longestWords/index.js b/10-longestWords/index.js
index a98d2d8..edaa5ec 100644
--- a/10-longestWords/index.js
+++ b/10-longestWords/index.js
@@ -1,4 +1,22 @@
 export function longestWords(words) {
-    // implementar logica aqui
+    
+    let maior = '';
+    let maiores = [];
+
+    for(let palavra of words){
+        if(palavra.length > maior.length){            
+            maior = palavra;
+        }        
+    } 
+    
+    let caracteres = maior.length;
+
+    for(let palavra of words){
+        if(caracteres === palavra.length){
+            maiores.push(palavra);
+        }
+    }
+
+    return maiores;
     
 }
\ No newline at end of file