1. Write a function that takes in an integer and outputs the sum of all the numbers from 1 to that integer.
Input: 2
Output 3
Input : 4
Output: 10
Input: 10
Output: 55
2. Write a function that takes in an array of numbers and outputs the maximum number
Input: [1,2,3]
Output: 3
Input: [3,6,4,5,2,1]
Output: 6
3. Write a function that takes in a string and outputs the number of vowels (not counting y).
Input: "hello"
Output: 2
Input: "you are great!"
Output: 6
Input: "why?"
Output: 0
4. Write a function that takes in a single word as a string and returns true if it's a palindrome and false otherwise (a palindrome is spelled the same way forwards and backwards).
Input: "noon"
Output: true
Input: "horse"
Output: false
Input: "racecar"
Output: true
