1a. You want to have $10,000 when you graduate in 3 years. You plan to make monthly deposits into your savings account, which also pays interest monthly. If you make your first deposit today, and assuming an opportunity cost of 12%, how much do you need to deposit monthly to achieve your goal?

1b. What is $100 today, plus $100 at the end of 1 year, plus $200 at the end of 2 years, plus $300 at the end of 3 years, worth to you today, given a discount rate of 4%

1c. What is $100 today, plus $100 at the end of 1 year, plus $200 at the end of 2 years, plus $300 at the end of 3 years, worth to you at the end of year 3, given a discount rate of 4%?