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..c09415e 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..2136361 100644
--- a/03-maxValue/index.js
+++ b/03-maxValue/index.js
@@ -1,4 +1,8 @@
 export function maxValue(values) {
   // implementar logica aqui
-  
+  let maxV = Math.max(...values);
+  if(!values.length){
+    maxV = 0;
+  }
+  return maxV;
 }
\ No newline at end of file
diff --git a/04-fibonacci/index.js b/04-fibonacci/index.js
index 37c64cc..fbd62d0 100644
--- a/04-fibonacci/index.js
+++ b/04-fibonacci/index.js
@@ -1,4 +1,13 @@
 export function fibonacci(value) {
   // implementar logica aqui
-  
+  let first = 0;
+  let second = 1;
+  if (value <= 1) {
+    return value;
+  }
+  for(let i = 3; i <= value; i++){
+    second = first + second;
+    first = second - first;
+  }
+  return first + second;
 }
\ No newline at end of file
diff --git a/05-isPrime/index.js b/05-isPrime/index.js
index ec9c4ac..d3d70d2 100644
--- a/05-isPrime/index.js
+++ b/05-isPrime/index.js
@@ -1,4 +1,9 @@
 export function isPrime(value) {
   // implementar logica aqui
-  
+  for (let x = 2; x < value; x++) {
+    if (value % x === 0 || value <= 1) {
+      return false;
+    }
+  }
+  return true;
 }
\ No newline at end of file
diff --git a/06-sum/index.js b/06-sum/index.js
index ebc2ee1..911b188 100644
--- a/06-sum/index.js
+++ b/06-sum/index.js
@@ -1,4 +1,8 @@
 export function sum(values) {
   // implementar logica aqui
-  
+  let soma = 0;
+  for (let i = 0; i < values.length; i++) {
+    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..962ef5c 100644
--- a/07-sumEven/index.js
+++ b/07-sumEven/index.js
@@ -1,4 +1,10 @@
 export function sumEven(value) {
   // implementar logica aqui
-  
-}
\ No newline at end of file
+  let soma = 0;
+  for (let i = 0; i < value.length; i++) {
+    if (value[i] % 2 == 0) {
+      soma += value[i];
+    }
+  }
+  return soma;
+}
diff --git a/08-isAnagram/index.js b/08-isAnagram/index.js
index 918308a..8bec24f 100644
--- a/08-isAnagram/index.js
+++ b/08-isAnagram/index.js
@@ -1,4 +1,4 @@
 export function isAnagram(word1, word2) {
   // implementar logica aqui
-  
+  return (word1.toLowerCase().split('').sort().join('')) === (word2.toLowerCase().split('').sort().join(''))
 }
\ No newline at end of file
diff --git a/09-mostRepeatedChar/index.js b/09-mostRepeatedChar/index.js
index b113ed8..bedc121 100644
--- a/09-mostRepeatedChar/index.js
+++ b/09-mostRepeatedChar/index.js
@@ -1,4 +1,16 @@
 export function mostUsedChar(text) {
     // implementar logica aqui
-    return ""
+    const textObj = {}
+    let maxCount = 0
+    let mostUsedChar = ""
+    for (let char of text) {
+        textObj[char] = textObj[char] + 1 || 1
+    }
+    for (let key in textObj) {
+        if (textObj[key] > maxCount) {
+            maxCount = textObj[key]
+            mostUsedChar = key
+        }
+    }
+    return mostUsedChar
 }
\ No newline at end of file
diff --git a/10-longestWords/index.js b/10-longestWords/index.js
index a98d2d8..b07a2f3 100644
--- a/10-longestWords/index.js
+++ b/10-longestWords/index.js
@@ -1,4 +1,16 @@
 export function longestWords(words) {
     // implementar logica aqui
-    
+    let long = 0;
+    let longWords = [];
+    for(let i = 0;i < words.length;i++){
+        if(words[i].length >= long){
+            long = words[i].length;
+        }
+    }
+    for(let j = 0;j < words.length;j++){
+        if(words[j].length == long){
+            longWords.push(words[j]);
+        }
+    }
+    return longWords;
 }
\ No newline at end of file