9. You deposit $ 7,142 in your account today. You make another deposit at t = 1 of $ 5,765 . How much will there be in your account at the end of year 1 if the interest rate is 5.5 percent p.a.? (Record your answer without a dollar sign, without commas and round your answer to 2 decimal places; that is, record $3,245.847 as 3245.85).

Answer: (13,299.81)

10. You deposit $ 55,705 in your account today. You make another deposit at t = 1 of $ 66,005 . How much will there be in your account at the end of year 2 if the interest rate is 14 percent p.a.? (Record your answer without a dollar sign, without commas and round your answer to 2 decimal places; that is, record $3,245.847 as 3245.85).

Answer- (147,639.92)

11. Your account pays interest at 8 percent p.a.. You deposit $ 10,895 in it today. You must have exactly $ 52,503 in the account at the end of two years. What should you do at the end of the first year (that is, what dollar amount must you deposit) to ensure this? (Record your answer without a dollar sign, without commas and round your answer to 2 decimal places; that is, record $3,245.847 as 3245.85).

Ans-(36,847.29)

12. You invest $ 4,239 in an account today. You make no additional deposits into the account. One year from today there is $ 5,038 in the account. What is the nominal interest rate that you earned on your money? (Record your answer as a percent rounded to 1 decimal place; for example, record .527945 = 52.8% as 52.8).

Ans-(18.8)

How to get these answers?