The correct answer to the problem is provided and circled, I need the work that shows how we got these answers. Financial calculators and excel are not allowed. I need step by step workouts of each problem. Thank you!

7. One investor wants to deposit $1000 at the end of every year into an account for 40 years beginning one year from now. Determine how much a second investor needs to deposit now in order to accumulate the same sum after 40 years as the first investor can if money can earn 8.4% annually. ($11,432.10) 8. A new car costs $24,500. A promising buyer wants to pay $6,000 down and make monthly payments for five years. If the interest rate on the loan is 6% compounded monthly, determine the size of the monthly payments. 9. Parents of a new baby girl want to make yearly payments at the end of each year for 18 years into an account which ca annually determine the size of the payments needed to accumulate $20,000 for the girl's college fund 18