diff --git a/01-greeting/index.js b/01-greeting/index.js
index 8f551af..203e5a7 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..d63c4fd 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..beb3856 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..1959a9a 100644
--- a/04-fibonacci/index.js
+++ b/04-fibonacci/index.js
@@ -1,4 +1,15 @@
 export function fibonacci(value) {
   // implementar logica aqui
+  let val1 = 0
+  let val2 = 1
+  let valFib
+
+  for (let i = 1; i <= value; i++){
+    valFib = val2 + val1
+    val1 = val2
+    val2 = valFib
+  }
+  
+  return val1
   
 }
\ No newline at end of file
diff --git a/05-isPrime/index.js b/05-isPrime/index.js
index ec9c4ac..847c6e0 100644
--- a/05-isPrime/index.js
+++ b/05-isPrime/index.js
@@ -1,4 +1,11 @@
 export function isPrime(value) {
   // implementar logica aqui
+  if (value < 2 ) return false
+  for (let i = 2; i < value; i++) {
+    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..6d311be 100644
--- a/06-sum/index.js
+++ b/06-sum/index.js
@@ -1,4 +1,9 @@
 export function sum(values) {
   // implementar logica aqui
-  
+  let sumArr = 0 
+  for (let i = 0; i < values.length; i++){
+    sumArr += values[i];
+  }
+  return sumArr;
+
 }
\ No newline at end of file
diff --git a/07-sumEven/index.js b/07-sumEven/index.js
index bb1e095..8c170c4 100644
--- a/07-sumEven/index.js
+++ b/07-sumEven/index.js
@@ -1,4 +1,11 @@
 export function sumEven(value) {
   // implementar logica aqui
-  
+  let sumPair = 0 
+  for (let i = 0; i < value.length; i++){
+    if (value[i] % 2 == 0){
+    sumPair += value[i];
+    }
+  }
+  return sumPair;  
+
 }
\ No newline at end of file
diff --git a/08-isAnagram/index.js b/08-isAnagram/index.js
index 918308a..2898bf9 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..7bd559b 100644
--- a/09-mostRepeatedChar/index.js
+++ b/09-mostRepeatedChar/index.js
@@ -1,4 +1,13 @@
 export function mostUsedChar(text) {
     // implementar logica aqui
-    return ""
+    const arr = text.split("");
+
+    let timesRepeat = {};
+    arr.forEach((count) =>  {
+        timesRepeat[count] = (timesRepeat[count] || 0) + 1;
+    })
+
+    const maxVal = Math.max(...Object.values(timesRepeat));
+    const num = Object.keys(timesRepeat).find((key) => timesRepeat[key] === maxVal);
+    return num;
 }
\ No newline at end of file
diff --git a/10-longestWords/index.js b/10-longestWords/index.js
index a98d2d8..9f9607f 100644
--- a/10-longestWords/index.js
+++ b/10-longestWords/index.js
@@ -1,4 +1,18 @@
 export function longestWords(words) {
     // implementar logica aqui
+    let big = "";
     
+    words.forEach(word => {
+        if(word.length > big.length){
+        big = word
+        }
+    });
+
+    const result = words.filter(word => {
+        if(word.length === big.length){
+            return word
+        }
+    });
+
+    return result
 }
\ No newline at end of file