CAN SOMEONE PLEASE ANSWER THESE STEP BY STEP!

Problems 14-16 are based on the following information: Consider a 4-year project that require $70,000 initial investment (at t=0) and generates an after- tax cash flow of $20,000; $40,000; $40,000, and $30,000 at years t=1, 2, 3, and 4 respectively. The cost of capital is 18%. Let's call it project X. Problem 14: Find NPV of the project Problem 15: Find EAA (Equivalent Annual Annuity) of the project Problem 16: An alternative project the company considers (let's call it project Y) is a 6-year project that has NPV=$19,409.11, EAA of $5,549.26, and a Payback Period of 4 years. If the company is only able to carry one project at any given time (and is only able to start a new project once the current project has been completed), which project (X or Y) the company should implement and why? You must answer the why question correctly to receive any credit for this