1. They offer you an investment. You deposited $ 3,000 five years ago, now $ 1,000, after 2 years you will deposit $ 3,000 and finally you will deposit $ 4,500 in 10 years. All with respect to this moment, how much money will you receive in 20 years if the interest rate they offer you is 7% semi-annually?

2. What interest rate do you get if you borrow $ 1,000 and get $ 1,325 back in 28 weeks?

3. What amount of money do you get back if you borrow $ 500 and the interest rate is 5% every 28 days and you borrow it for 180 days?