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..85ffa32 100644
--- a/02-triangleArea/index.js
+++ b/02-triangleArea/index.js
@@ -1,3 +1,4 @@
 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..7539ea0 100644
--- a/03-maxValue/index.js
+++ b/03-maxValue/index.js
@@ -1,4 +1,6 @@
 export function maxValue(values) {
   // implementar logica aqui
-  
+  if(Math.max.apply(undefined ,values) == -Infinity)
+    return 0
+  return Math.max.apply(undefined ,values);
 }
\ No newline at end of file
diff --git a/04-fibonacci/index.js b/04-fibonacci/index.js
index 37c64cc..f3dd52e 100644
--- a/04-fibonacci/index.js
+++ b/04-fibonacci/index.js
@@ -1,4 +1,8 @@
 export function fibonacci(value) {
   // implementar logica aqui
-  
+  const arr = [0, 1];
+  for (let i = 2; i <= value; i++) {
+    arr[i] = arr[i - 2] + arr[i - 1];
+  }
+  return arr[value]; 
 }
\ No newline at end of file
diff --git a/05-isPrime/index.js b/05-isPrime/index.js
index ec9c4ac..6e7afa2 100644
--- a/05-isPrime/index.js
+++ b/05-isPrime/index.js
@@ -1,4 +1,11 @@
 export function isPrime(value) {
   // implementar logica aqui
-  
+  if (isNaN(value) || !isFinite(value) || value % 1 || value < 2)
+    return false;
+  if (value % 2 == 0) 
+    return (value == 2);
+  for (let i = 3; i <= Math.sqrt(value); i += 2) {
+    if (value % i == 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..5a27c2f 100644
--- a/06-sum/index.js
+++ b/06-sum/index.js
@@ -1,4 +1,8 @@
 export function sum(values) {
   // implementar logica aqui
-  
+  let res=0;
+  values.forEach(element => {
+      res+=element;
+  });
+  return res; 
 }
\ No newline at end of file
diff --git a/07-sumEven/index.js b/07-sumEven/index.js
index bb1e095..97c648c 100644
--- a/07-sumEven/index.js
+++ b/07-sumEven/index.js
@@ -1,4 +1,9 @@
 export function sumEven(value) {
   // implementar logica aqui
-  
+  let res=0;
+  value.forEach(element => {
+    if(element % 2 === 0)
+        res+=element;
+  });
+  return res;
 }
\ No newline at end of file
diff --git a/08-isAnagram/index.js b/08-isAnagram/index.js
index 918308a..a8d08f0 100644
--- a/08-isAnagram/index.js
+++ b/08-isAnagram/index.js
@@ -1,4 +1,6 @@
 export function isAnagram(word1, word2) {
   // implementar logica aqui
-  
+  if (word1.toLowerCase().split('').sort().join('')===word2.toLowerCase().split('').sort().join(''))
+      return true
+  return false
 }
\ No newline at end of file
diff --git a/09-mostRepeatedChar/index.js b/09-mostRepeatedChar/index.js
index b113ed8..af729cd 100644
--- a/09-mostRepeatedChar/index.js
+++ b/09-mostRepeatedChar/index.js
@@ -1,4 +1,12 @@
 export function mostUsedChar(text) {
     // implementar logica aqui
-    return ""
+    let max = 0;
+    let maxRepeated = '';
+    text.split('').forEach(function(char){
+        if(text.split(char).length > max) {
+            max = text.split(char).length;
+            maxRepeated = char;
+        }
+    });
+    return maxRepeated;
 }
\ No newline at end of file
diff --git a/10-longestWords/index.js b/10-longestWords/index.js
index a98d2d8..d17f723 100644
--- a/10-longestWords/index.js
+++ b/10-longestWords/index.js
@@ -1,4 +1,14 @@
 export function longestWords(words) {
     // implementar logica aqui
-    
+    let newArr = [];
+    let long = 0;
+    words.forEach(function(element){
+        if(element.length > long){
+            long = element.length
+        }
+    });
+    newArr = words.filter(element => 
+        element.length == long
+    );
+    return newArr;
 }
\ No newline at end of file