1. Ten years ago, your mother invested $6,000. Today, that investment is worth $40,000. What is the average annual rate of return (%) she earned on this investment? Group of answer choices

12.7

10.8

14.5

18.3

16.4

20.9

2. Mary will receive $15,000 in two years when she graduates. She plans to invest this at an annual interest rate of 6.5 percent. How much money will she have 13 years from now? Group of answer choices

24825

28157

21887

23310

29987

26439