a) Calculate the PV of a perpetuity with a cash flow of $111.11 received every year. The first cash flow occurs in year 1. The interest rate is 11% simple annual rate.

b) Calculate the PV of a perpetuity with a cash flow of $222.22 received every second year. The first cash flow occurs in year 2. The interest rate is 11% simple annual rate.

c) Calculate the PV of a perpetuity with a cash flow of $333.33 received every third year. The first cash flow occurs in year 3. The interest rate is 11% simple annual rate.