simple and compound interest, please help explain the answers please

[3, A] 7 b) Marcia is investing some money!!! She is making regular contributions to a Registered Education Saving Account. She came up with the following formula to determine the 325[(1.o125)431] future value of her RESP: A = . 0.0125 What is her regular contribution (payment)? What is the annual interest rate if interest is compounded quarterly? How many years will she be contributing to the RESP if interest is compounded quarterly? State the value of all variables and state all formulas for all questions for full marks. [3. A] a) [3, A] 9 Carly deposits $275 in a bank account earning 12% per annum simple interest for six months. How much interest does she [2, A] b) How much money is in her bank earn? account after 6 months? Alfred is saving for a car. He puts $4500 in a Guaranteed Investment Certificate paying 5.25% per annum, compounded quarterly. How much money will he have available to buy a car 3 years from now? [3, T] 10 Kenneth needs $5000 for university in 5 years. His parents plan to invest some money in an account paying interest at a rate of 7.2% per annum, compounded monthly. How much should they invest now to have $5000 in 5 years. [3, T] 11 Jasveen plans to invest $700 in her RRSP at the end of each month for 7 years. If she earns 8.4% interest compounded monthly, how much will her RRSP be worth after the last payment is made? [3, T] 12 Suchie won a prize of $25 000. She has decided to invest in an account paying 10.4% per annum, compounded weekly. How much can she withdraw from the account each week over the next three years, starting in one week? W: R [1(1+i)n A = R [OH-2L1]