I need da answer pls

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

The clayton family’s pool has vertices at the coordinates (0, 2), (0, 5), (2, 5), (2, 6), (5, 6), (5, 1), (2, 1), and (2, 2). if each grid square has an area of 9 square feet, what is the area of the pool?

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?