Please answer both

Josh and Sara want to buy a house in four years. If the house will cost $180,000, how much must they deposit at the end of every year for the next four years at 5% compounded annually in order to buy the house? a. $45,000 O b. $36,990 O c. $41,763 d. $32,040 A company will have to pay a $50,000 liability in four years. How much must be deposited now into a bank account earning 8% compounded semiannually to fully fund the future payment? O a. $36,550 b. $36,523 c. $35,500 d. $34,000