4.What if we only get the 100 once at the end of this year? (92.59)

5.What if it we get it once, at the end of ten years? (46.319)

6.If we get the 100 each year for ten years and invest each payment in an account that earns 8% how much will be there at the end? (1448.66)

7.Put 1200 in an account earning 6%. How long until it grows to 2000? (8.77 years)

8.Buy a new calculator for 400. Leave it in the original wrapping for six years. Sell it to a finance nerd for 600 at that point. What is your rate of return? (6.99%)