I need help with these problems

(Annuity interest rate) You've been offered a loan of $15,000, which you will have to repay in 7 equal annual payments of $4,000, with the first payment due one year from now. What interest rate would you pay on that loan? The interest rate you would pay on the loan is%. (Round to two decimal places) (Related to Checkpoint 6.1) (Annuity payments) A firm borrows $25,000 from the bank at 11 percent compounded annually to purchase some new machinery. This loan is to be repaid in equal annual installments at the end of each year over the next 8 years. How much will each annual payment be? The amount of each annual payment will be $ (Round to the nearest cent.) (Present value of an annuity due) Determine the present value of an annuity due of $7,000 per year for 8 years discounted back to the present at an annual rate of 11 percent. What would be the present value of this annuity due if it were discounted at an annual rate of 16 percent? (Round to the nearest cent) a. If the annual discount rate is 11 percent, the present value of the annuity due is $ b. If the annual discount rate is 16 percent, the present value of the annuity due is $ (Round to the nearest cent.)