diff --git a/01-greeting/index.js b/01-greeting/index.js
index 8f551af..544b5f1 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..bc6458b 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..87d8610 100644
--- a/03-maxValue/index.js
+++ b/03-maxValue/index.js
@@ -1,4 +1,9 @@
 export function maxValue(values) {
   // implementar logica aqui
-  
+  if(values.length == 0) return 0;
+
+  return values.reduce((ac, value) => {
+    if(ac > value) return ac;
+    return value
+  }, );
 }
\ No newline at end of file
diff --git a/04-fibonacci/index.js b/04-fibonacci/index.js
index 37c64cc..f764b91 100644
--- a/04-fibonacci/index.js
+++ b/04-fibonacci/index.js
@@ -1,4 +1,15 @@
 export function fibonacci(value) {
   // implementar logica aqui
+  let n1 = 0
+  let n2 = 1
+  let fibo
+
+  for (let i = 1; i <= value; i++) {
+    fibo = n1 + n2;
+    n1 = n2;
+    n2 = fibo;
+  };
+
+  return n1
   
 }
\ No newline at end of file
diff --git a/05-isPrime/index.js b/05-isPrime/index.js
index ec9c4ac..d33bcde 100644
--- a/05-isPrime/index.js
+++ b/05-isPrime/index.js
@@ -1,4 +1,9 @@
 export function isPrime(value) {
   // implementar logica aqui
-  
+  for (let i = 2; i < value; i++) {
+    if(value % i == 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..c15ba29 100644
--- a/06-sum/index.js
+++ b/06-sum/index.js
@@ -1,4 +1,6 @@
 export function sum(values) {
   // implementar logica aqui
-  
+  return values.reduce((ac, value) => {
+    return ac += value;
+  }, 0);
 }
\ No newline at end of file
diff --git a/07-sumEven/index.js b/07-sumEven/index.js
index bb1e095..9dd0195 100644
--- a/07-sumEven/index.js
+++ b/07-sumEven/index.js
@@ -1,4 +1,8 @@
 export function sumEven(value) {
   // implementar logica aqui
-  
+  return value.filter((number) => {
+    if(number % 2 == 0) return number;
+  }).reduce((ac, number) => {
+    return ac += number;
+  }, 0);
 }
\ No newline at end of file
diff --git a/08-isAnagram/index.js b/08-isAnagram/index.js
index 918308a..a73057d 100644
--- a/08-isAnagram/index.js
+++ b/08-isAnagram/index.js
@@ -1,4 +1,8 @@
 export function isAnagram(word1, word2) {
   // implementar logica aqui
-  
+  word1 = word1.toLowerCase().split('').sort().join('');
+  word2 = word2.toLowerCase().split('').sort().join('');
+
+  if(word1 == word2) return true;
+  return false;
 }
\ No newline at end of file
diff --git a/09-mostRepeatedChar/index.js b/09-mostRepeatedChar/index.js
index b113ed8..6507055 100644
--- a/09-mostRepeatedChar/index.js
+++ b/09-mostRepeatedChar/index.js
@@ -1,4 +1,14 @@
 export function mostUsedChar(text) {
     // implementar logica aqui
-    return ""
+    let max = 0
+    let maxChar = ''
+
+    text.split('').forEach((char) => {
+        if(text.split(char).length > max) {
+            max = text.split(char).length;
+            maxChar = char;
+        }
+    });
+
+    return maxChar
 }
\ No newline at end of file
diff --git a/10-longestWords/index.js b/10-longestWords/index.js
index a98d2d8..45ede10 100644
--- a/10-longestWords/index.js
+++ b/10-longestWords/index.js
@@ -1,4 +1,20 @@
 export function longestWords(words) {
     // implementar logica aqui
+    let long = ''
+
+    const longest = words.map((word) => {
+        if(word.length > long.length) {
+            long = word;
+        }
+
+        return word
+
+    }).filter((word) => {
+        if(word.length === long.length) {
+            return word;
+        }
+    });
+
+    return longest
     
 }
\ No newline at end of file