diff --git a/01-greeting/index.js b/01-greeting/index.js
index 8f551af..6b88803 100644
--- a/01-greeting/index.js
+++ b/01-greeting/index.js
@@ -1,4 +1,5 @@
 export function greet(name) {
   // implementar logica aqui
-  return "";
+  let resultadoNome = `Hello ${name}`;
+  return resultadoNome;
 }
diff --git a/02-triangleArea/index.js b/02-triangleArea/index.js
index 7628fcd..ace24c8 100644
--- a/02-triangleArea/index.js
+++ b/02-triangleArea/index.js
@@ -1,3 +1,5 @@
 export function triangleArea(base, height) { 
   // your code here
+  let soma = base * height / 2
+  return soma
 } 
\ No newline at end of file
diff --git a/03-maxValue/index.js b/03-maxValue/index.js
index e433b31..8b8073a 100644
--- a/03-maxValue/index.js
+++ b/03-maxValue/index.js
@@ -1,4 +1,8 @@
 export function maxValue(values) {
   // implementar logica aqui
-  
+  let maiorNumero = Math.max(...values);
+  if (values.length === 0) {
+    return maiorNumero=0
+  } else {};
+  return maiorNumero ;
 }
\ No newline at end of file
diff --git a/04-fibonacci/index.js b/04-fibonacci/index.js
index 37c64cc..976c078 100644
--- a/04-fibonacci/index.js
+++ b/04-fibonacci/index.js
@@ -1,4 +1,17 @@
 export function fibonacci(value) {
   // implementar logica aqui
-  
+  let number1 = 0; 
+  let number2 = 1;     
+  let result;
+
+  if (value === 0 || value === 1 ) {
+    return value;
+  } else {
+    for  (let i = 1 ; i < value ; i++)  {
+      result = number2 + number1;
+      number1 = number2;
+      number2 = result;
+    }
+  }
+  return result;
 }
\ No newline at end of file
diff --git a/05-isPrime/index.js b/05-isPrime/index.js
index ec9c4ac..18936a8 100644
--- a/05-isPrime/index.js
+++ b/05-isPrime/index.js
@@ -1,4 +1,9 @@
 export function isPrime(value) {
   // implementar logica aqui
-  
+  for (let index = 2; index < value; index++) {
+    if (value % index === 0) {
+      return false
+    }
+  }
+  return value > 1;
 }
\ No newline at end of file
diff --git a/06-sum/index.js b/06-sum/index.js
index ebc2ee1..ca39303 100644
--- a/06-sum/index.js
+++ b/06-sum/index.js
@@ -1,4 +1,9 @@
 export function sum(values) {
   // implementar logica aqui
-  
+  let soma = 0;
+
+  for (let index = 0; index < values.length; index++) {
+    soma += values[index];
+  }
+  return soma;
 }
\ No newline at end of file
diff --git a/07-sumEven/index.js b/07-sumEven/index.js
index bb1e095..6e14f98 100644
--- a/07-sumEven/index.js
+++ b/07-sumEven/index.js
@@ -1,4 +1,10 @@
 export function sumEven(value) {
   // implementar logica aqui
-  
+  var total = 0;
+  for (let i of value) { 
+    if (i % 2 ===0) {
+      total += i; 
+    }
+  }
+  return total;
 }
\ No newline at end of file
diff --git a/08-isAnagram/index.js b/08-isAnagram/index.js
index 918308a..e06ff3c 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 === word2) {
+    return true;
+  } else if (word1.length !== word2.length) {
+    return false;
+  } else {
+    var str1 = word1.toLowerCase().split("").sort().join(""); 
+    var str2 = word2.toLowerCase().split("").sort().join("");
+    var result = (str1 == str2);
+    return result;
+  }
+
 }
\ No newline at end of file
diff --git a/09-mostRepeatedChar/index.js b/09-mostRepeatedChar/index.js
index b113ed8..52eb7de 100644
--- a/09-mostRepeatedChar/index.js
+++ b/09-mostRepeatedChar/index.js
@@ -1,4 +1,22 @@
 export function mostUsedChar(text) {
     // implementar logica aqui
-    return ""
+    const boxChar = {};
+    let max = 0;
+    let result = '';
+
+    for(let char of text){
+        if(boxChar[char]){
+            boxChar[char]++;
+        }else{
+            boxChar[char] = 1;
+        }
+    }
+    for(let char in boxChar){
+        if(boxChar[char] > max){
+            max = boxChar[char];
+            result = char;
+        }
+    }
+
+    return result;
 }
\ No newline at end of file
diff --git a/10-longestWords/index.js b/10-longestWords/index.js
index a98d2d8..58b8a0f 100644
--- a/10-longestWords/index.js
+++ b/10-longestWords/index.js
@@ -1,4 +1,17 @@
 export function longestWords(words) {
     // implementar logica aqui
-    
+
+    let loop = 0;
+    let newWords = [];
+    for (let index = 0; index < words.length; index++) {
+        if (words[index].length > loop) {
+            loop = words[index].length
+        }
+    }
+    for (let index = 0; index < words.length; index++) {
+        if (loop === words[index].length) {
+            newWords.push(words[index])
+        }
+    }
+    return newWords;
 }
\ No newline at end of file