(Perpetuities) What is the present value of the following? a. A $400 perpetuity discounted back to the present at 7 percent b. A $6,000 perpetuity discounted back to the present at 11 percent c. A $160 perpetuity discounted back to the present at 8 percent d. A $65 perpetuity discounted back to the present at 4 percent a. What is the present value of a $400 perpetuity discounted back to the present at 7 percent? (Round to the nearest cent.) b. What is the present value of a $6,000 perpetuity discounted back to the present at 11 percent? (Round to the nearest cent) c. What is the present value of a $160 perpetuity discounted back to the present at 8 percent? (Round to the nearest cent) d. What is the present value of a $65 perpetuity discounted back to the present at 4 percent? (Round to the nearest cent)