both for upvote pls

QUESTION 7 Assume Rafael can eam an 7 percent after-tax rate of return. He can receive $2,000 today or $3,000 in five years. What is the present value of the $3,000 payment due in five years? QUESTION 8 Assume Ellina earns a 9 percent after-tax rate of return, and that she owes a friend $2,400. She can pay the friend $2,400 today or $3,500 in four years. What is the present value of the $3,500 payment due in four years