please I need help asap. thank you for question 13,14,15

QUESTION 13 perpetuity has a PV of $5000. If the interest rate is 15%, how much will the perpetuity pay every year? Note: Express your answers in strictly numerical terms. For example, if the answer is $500, write enter 500 as an answer. QUESTION 14 "If the rate of interest is 5%, then the present value (PV) of an investment that pays $1000 per year and lasts 5 years is Express your answers in strictly numerical terms. For example, if the answer is 54, enter 0.05 as an answer." Note: QUESTION 15 "A rich donor gives a hospital $100000 one year from today. Each year after that, the hospital will receive a payment 4% larger than the previous payment with the last payment occurring in 6 years' time. What is the present value (PV) of this donation, given that the interest rate is 547 Note: Express your answers in strictly numerical terms. For example, if the answer is 5%, enter 0.05 as an answer." Click Send