diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..a7554c2
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+# dependencies
+/node_modules
\ No newline at end of file
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..b3f0627 100644
--- a/02-triangleArea/index.js
+++ b/02-triangleArea/index.js
@@ -1,3 +1,3 @@
 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..d9e04e0 100644
--- a/03-maxValue/index.js
+++ b/03-maxValue/index.js
@@ -1,4 +1,7 @@
 export function maxValue(values) {
-  // implementar logica aqui
-  
+  if(values.length === 0){
+    return 0;
+  }
+
+  return Math.max(...values);
 }
\ No newline at end of file
diff --git a/04-fibonacci/index.js b/04-fibonacci/index.js
index 37c64cc..d16698a 100644
--- a/04-fibonacci/index.js
+++ b/04-fibonacci/index.js
@@ -1,4 +1,20 @@
 export function fibonacci(value) {
   // implementar logica aqui
   
+  let fibMenor1 = 0;
+  let fibMenor2 = 1;
+  let fibN = 0;
+  
+  if(value < 2){
+      return value;
+  }
+
+  for (let i = 1; i <= value; i++){
+      fibN = fibMenor1 + fibMenor2;
+      fibMenor2 = fibMenor1;
+      fibMenor1 = fibN;
+  }
+
+  return fibN;
+
 }
\ No newline at end of file
diff --git a/05-isPrime/index.js b/05-isPrime/index.js
index ec9c4ac..a3f934d 100644
--- a/05-isPrime/index.js
+++ b/05-isPrime/index.js
@@ -1,4 +1,17 @@
 export function isPrime(value) {
   // implementar logica aqui
   
+  let div = 0;
+
+  for(let i = 0; i <= value; i++){
+      if(value % i === 0){
+          div++;
+      }
+  }
+
+  if (div === 2){
+      return true;
+  }
+
+  return false;
 }
\ No newline at end of file
diff --git a/06-sum/index.js b/06-sum/index.js
index ebc2ee1..db7bd5d 100644
--- a/06-sum/index.js
+++ b/06-sum/index.js
@@ -1,4 +1,11 @@
 export function sum(values) {
   // implementar logica aqui
   
+  let soma = 0;
+
+  for(let i = 0; i < values.length; i++){
+      soma += values[i];
+  }
+
+  return soma;
 }
\ No newline at end of file
diff --git a/07-sumEven/index.js b/07-sumEven/index.js
index bb1e095..14b79e8 100644
--- a/07-sumEven/index.js
+++ b/07-sumEven/index.js
@@ -1,4 +1,12 @@
 export function sumEven(value) {
   // implementar logica aqui
-  
+  let soma = 0;
+
+  for(let i = 0; i < value.length; i++){
+      if(value[i] % 2 === 0){
+          soma += value[i];
+      }
+  }
+
+  return soma;
 }
\ No newline at end of file
diff --git a/08-isAnagram/index.js b/08-isAnagram/index.js
index 918308a..0168375 100644
--- a/08-isAnagram/index.js
+++ b/08-isAnagram/index.js
@@ -1,4 +1,16 @@
 export function isAnagram(word1, word2) {
   // implementar logica aqui
   
+  const compare = str =>
+      str
+      .toLowerCase()
+      .split('')
+      .sort()
+      .join('');
+
+  if(compare(word1) === compare(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..b3e09d1 100644
--- a/09-mostRepeatedChar/index.js
+++ b/09-mostRepeatedChar/index.js
@@ -1,4 +1,26 @@
 export function mostUsedChar(text) {
     // implementar logica aqui
-    return ""
+    let newStr = text.replace(' ', '').split('');
+    let count = 0;
+    let countControl = 0;
+    let strRepeat = '';
+
+    for(let i = 0; i < newStr.length; i++){
+
+        for(let j = 0; j < newStr.length; j++){
+            if(newStr[i] === newStr[j]){
+                count++;
+            }
+        }
+
+        if(count > countControl){
+            strRepeat = newStr[i];
+            countControl = count;
+        }
+
+        count = 0;
+        
+    }
+
+    return strRepeat;
 }
\ No newline at end of file
diff --git a/10-longestWords/index.js b/10-longestWords/index.js
index a98d2d8..23c2bae 100644
--- a/10-longestWords/index.js
+++ b/10-longestWords/index.js
@@ -1,4 +1,20 @@
 export function longestWords(words) {
     // implementar logica aqui
-    
+    let count = 0;
+    let strFinal = [''];
+
+    for(let i = 0; i < words.length; i++){
+
+        if(words[i].length >= strFinal[0].length){
+            if(strFinal[0].length === '' || strFinal[0].length < words[i].length){
+                strFinal.length = 0;
+                strFinal.push(words[i]);
+            }else{
+                strFinal.push(words[i]);
+            }
+        }
+        
+    }
+
+    return strFinal;
 }
\ No newline at end of file