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..83e0908 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..2327b0d 100644
--- a/03-maxValue/index.js
+++ b/03-maxValue/index.js
@@ -1,4 +1,8 @@
 export function maxValue(values) {
   // implementar logica aqui
-  
+  if (values.length == 0){
+    return 0
+  }else{
+    return Math.max(...values)
+  }
 }
\ No newline at end of file
diff --git a/04-fibonacci/index.js b/04-fibonacci/index.js
index 37c64cc..357ed12 100644
--- a/04-fibonacci/index.js
+++ b/04-fibonacci/index.js
@@ -1,4 +1,8 @@
 export function fibonacci(value) {
   // implementar logica aqui
-  
+  const fibo = [0, 1]
+  for (let i = 2; i <= value; i++) {
+      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..3d7d0c7 100644
--- a/05-isPrime/index.js
+++ b/05-isPrime/index.js
@@ -1,4 +1,6 @@
 export function isPrime(value) {
   // implementar logica aqui
-  
+      for (let div = 2; div < value; div++) 
+      if (value % div == 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..902f0e1 100644
--- a/06-sum/index.js
+++ b/06-sum/index.js
@@ -1,4 +1,6 @@
 export function sum(values) {
   // implementar logica aqui
-  
+  let sums = 0;           
+  values.forEach(item => sums += item);
+  return sums
 }
\ No newline at end of file
diff --git a/07-sumEven/index.js b/07-sumEven/index.js
index bb1e095..53005ea 100644
--- a/07-sumEven/index.js
+++ b/07-sumEven/index.js
@@ -1,4 +1,7 @@
 export function sumEven(value) {
   // implementar logica aqui
-  
+  let sums = 0;
+  value.forEach(item => {
+      if(item%2==0) sums += item;});
+     return sums
 }
\ No newline at end of file
diff --git a/08-isAnagram/index.js b/08-isAnagram/index.js
index 918308a..64b56b2 100644
--- a/08-isAnagram/index.js
+++ b/08-isAnagram/index.js
@@ -1,4 +1,14 @@
 export function isAnagram(word1, word2) {
   // implementar logica aqui
-  
+  if(word1.length == word2.length){            
+    const words1 = word1.toUpperCase().split("").sort();
+    const words2 = word2.toUpperCase().split("").sort();
+    if (words1.join() == words2.join()){
+        return true
+    }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..8a25df1 100644
--- a/09-mostRepeatedChar/index.js
+++ b/09-mostRepeatedChar/index.js
@@ -1,4 +1,9 @@
 export function mostUsedChar(text) {
     // implementar logica aqui
-    return ""
+    let words = {}
+    const texts = text.toLowerCase().split("").sort();
+    texts.forEach((word) => words[word] = (words[word] || 0) + 1);
+    const maxVal = Math.max(...Object.values(words));
+    const word = Object.keys(words).find((key) => words[key] === maxVal);
+    return word
 }
\ No newline at end of file
diff --git a/10-longestWords/index.js b/10-longestWords/index.js
index a98d2d8..1118c26 100644
--- a/10-longestWords/index.js
+++ b/10-longestWords/index.js
@@ -1,4 +1,10 @@
 export function longestWords(words) {
     // implementar logica aqui
-    
+    let longestSize = 0
+    let longestWord = []
+    words.forEach(element => {
+        if(element.length>longestSize)
+        {longestSize = element.length}})
+    longestWord = words.filter(element => element.length === longestSize);
+    return longestWord
 }
\ No newline at end of file