1. If I invest $5,000 at the start of each year every year for the next four years in an account paying 4% annual interest, how much will I receive at the end of 4 years? (ordinary annuity vs. annuity due) 2. I want to borrow $20,000 for 5 years to buy a new car. If the APR is 4%, calculate my monthly payment. 3. I have $10,000 right now. I need $14,000 at the end of year 4. What interest rate must I receive to turn $10,000 into $14,000. 4. In how many years will my savings triple if I can earn 5% annual interest? 5. What is the present value of a 10-year $100,000 annuity if the annual opportunity cost is 5%