Please answer the following questions on the topic Future Value of an Annuity; Sinking Funds

Acme Annuities recently offered an annuity that pays 4.8% compounded monthly. What equal monthly deposit should be made into this annuity in order to have $72,000 in 10 years? The amount of each deposit should be $ (Round to the nearest cent.) A company estimates that it will need $99,000 in 13 years to replace a computer. If it establishes a sinking fund by making fixed monthly payments into an account paying 4.5% compounded monthly, how much should each payment be? The amount of each payment should be $ (Round to the nearest cent.) Bob makes his first $600 deposit into an IRA earning 6.8% compounded annually on his 24th birthday and his last $600 deposit on his 36th birthday (13 equal deposits in all). With no additional deposits, the money in the IRA continues to earn 6.8% interest compounded annually until Bob retires on his 65th birthday. How much is in the IRA when Bob retires? The amount in the IRA when Bob retires is (Round to the nearest cent as needed.)