C Language Only

1. Ask the user to enter a character. If the character is an English alphabet then print the corresponding uppercase character, otherwise, display a custom warning message. [14] 2. A company decided to give a bonus of 10% to an employee if his/her year of service is equal or more than 5 years. Take the user input for their salary and year of service and print the bonus and new salary amount. [8] Sample Output: 3. For the following equation, ask the user for two integers, and print the answer with up to three [8] decimal places. (yx)5+xy3y7