I need help solving these problems or providing a formula for each would help.?

1. The Flores Family loves to go sailing on the weekends. Mr. Flores has decided to purchase a more spacious sailboat. The sailboat he is interested in buying in 2 years will cost him $20,000. An account at Invest Well Bank earns 6% per year compounded monthly. How much should Mr. Flores deposit in this account at the beginning of each month to be able to pay cash for the sailboat in 2 years?

a) $935.16

b) $747.06

c) $845.78

d) $816.41

e) $786.41

f) None of the above.

2. A school realizes that they need a new copy machine for their main office. The copy machine costs $5,500. After speaking with the financial advisor, they decide to pay 10% of the cost of the machine in cash and finance the rest through their credit union. How much is their monthly payment if the credit union will charge 4% per year compounded monthly for 2 years?

a) $234.95

b) $202.12

c) $18.58

d) $38.58

e) $214.95

f) None of the above.

3. Your brother would like to have $24,000 in 3 years for the purchase of a new car. What monthly payment should he make into an account paying 8% per year compounded monthly to attain his goal?

a) $572.07

b) $622.07

c) $552.07

d) $592.07

e) $582.07

f) None of the above.

4. You borrowed $13,000 from your bank to build a small cabin on your property. The bank will charge 8% per year compounded quarterly. You decide to payoff this loan in 3 years by making quarterly payments. How much are your quarterly payments?

a) $1,269.27

b) $1,249.27

c) $1,239.27

d) $1,219.27

e) $1,229.27

f) None of the above.

Thanks.