please do both parts in 30 minutes please urgently... I'll give you up thumb definitely

Question 4 (1 point) $100 is deposited each quarter for 5 years. What is the future value of the account if interest rate is 12% per year compounded monthly. a) $ 2695.76 b) $ 2735.27 c) $3095.24 d) $2534.35 Question 5 (1 point) A builder is buying a manual concrete mixer. He has two choices. A used one at $ 475 should last him about 3 years. A new one at $1250 would likely last 8 years. Both have a salvage value of $ 0. The interest rate is 8%. Which mixer should the builder purchase? a) The used mixer because it has the lowest cost O b) The new mixer because it will last longer c) The new mixer because it has the lowest cost O d) Decision can not be made based on the given information