Problem 43: Betty deposits $1000 at the end of every nine months period for 3 years. After 3 years her account is worth S 4407.17. What was her rate of return ? What is the effective rate? Bob deposits $2000 at the end of the first year, $ 1000 at the end of the second year and $ 1000 at the end of the third year. After three vears his account worth is $4439.45. What was his rate of return? What is the effective rate? Whose account really did better - Betty's or Bob's? Explain