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..319154f 100644
--- a/02-triangleArea/index.js
+++ b/02-triangleArea/index.js
@@ -1,3 +1,5 @@
-export function triangleArea(base, height) { 
+export function triangleArea(base, height) {
   // your code here
+  let area = base * height / 2
+  return area
 } 
\ No newline at end of file
diff --git a/03-maxValue/index.js b/03-maxValue/index.js
index e433b31..b278e4c 100644
--- a/03-maxValue/index.js
+++ b/03-maxValue/index.js
@@ -1,4 +1,10 @@
 export function maxValue(values) {
   // implementar logica aqui
-  
+  if (values.length === 0) {
+    
+    return 0;
+  }
+
+  return Math.max.apply(null,values);
+
 }
\ No newline at end of file
diff --git a/04-fibonacci/index.js b/04-fibonacci/index.js
index 37c64cc..c111ec9 100644
--- a/04-fibonacci/index.js
+++ b/04-fibonacci/index.js
@@ -1,4 +1,14 @@
 export function fibonacci(value) {
   // implementar logica aqui
-  
+  if (value < 1) return 0
+  if (value <= 2) return 1
+  let fibMinus2 = 0
+  let fibMinus1 = 1
+  let fibN = value
+  for (let i = 2; i <=value; i++){
+      fibN = fibMinus1 + fibMinus2
+      fibMinus2 = fibMinus1
+      fibMinus1 = fibN
+  }
+  return fibN
 }
\ No newline at end of file
diff --git a/05-isPrime/index.js b/05-isPrime/index.js
index ec9c4ac..b3b6f2a 100644
--- a/05-isPrime/index.js
+++ b/05-isPrime/index.js
@@ -1,4 +1,13 @@
 export function isPrime(value) {
   // implementar logica aqui
-  
+  if(value == 0 || value == 1) {
+    return false
+}
+
+for(let div = 2; div <= Math.sqrt(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..ebdc89d 100644
--- a/06-sum/index.js
+++ b/06-sum/index.js
@@ -1,4 +1,13 @@
 export function sum(values) {
   // implementar logica aqui
-  
+  if (values.length === 0) {
+    
+    return 0;
+  }
+
+  let sum = values.reduce(function(accumulator,value){
+    return accumulator + value;
+})
+
+return sum
 }
\ No newline at end of file
diff --git a/07-sumEven/index.js b/07-sumEven/index.js
index bb1e095..8fff8f4 100644
--- a/07-sumEven/index.js
+++ b/07-sumEven/index.js
@@ -1,4 +1,13 @@
 export function sumEven(value) {
   // implementar logica aqui
-  
-}
\ No newline at end of file
+  const newArray = value;
+  var i;
+  let total = 0;
+
+  for (i = 0; i < newArray.length; i++) {
+  if (newArray[i] % 2 === 0) {
+  total = total + newArray[i];
+      }
+  }
+  return total;
+}             
\ No newline at end of file
diff --git a/08-isAnagram/index.js b/08-isAnagram/index.js
index 918308a..62700e1 100644
--- a/08-isAnagram/index.js
+++ b/08-isAnagram/index.js
@@ -1,4 +1,6 @@
 export function isAnagram(word1, word2) {
   // implementar logica aqui
-  
-}
\ No newline at end of file
+  word1 = word1.toUpperCase().split('').sort().join('');
+            word2 = word2.toUpperCase().split('').sort().join('');
+            return word1 === word2
+        }
\ No newline at end of file
diff --git a/09-mostRepeatedChar/index.js b/09-mostRepeatedChar/index.js
index b113ed8..e7d6fdf 100644
--- a/09-mostRepeatedChar/index.js
+++ b/09-mostRepeatedChar/index.js
@@ -1,4 +1,19 @@
 export function mostUsedChar(text) {
     // implementar logica aqui
-    return ""
-}
\ No newline at end of file
+    let result = '';
+            let mostUsedCount = 0;
+            for (const letter of text) {
+                let countLetter = 0;
+                for (const letterToCount of text) {
+                    if (letterToCount === letter) {
+                        countLetter++;
+                    }
+                }
+                if (countLetter > mostUsedCount) {
+                    mostUsedCount = countLetter;
+                    result = letter;
+                }
+            }
+           
+            return result;
+        }
\ No newline at end of file
diff --git a/10-longestWords/index.js b/10-longestWords/index.js
index a98d2d8..d17f723 100644
--- a/10-longestWords/index.js
+++ b/10-longestWords/index.js
@@ -1,4 +1,14 @@
 export function longestWords(words) {
     // implementar logica aqui
-    
+    let newArr = [];
+    let long = 0;
+    words.forEach(function(element){
+        if(element.length > long){
+            long = element.length
+        }
+    });
+    newArr = words.filter(element => 
+        element.length == long
+    );
+    return newArr;
 }
\ No newline at end of file