If the interest rate is 7% compounded annually, what is the value of the following three investments? Please answer c for me and show your work.

If the interest rate is 7% compounded annually, what is the value of the following three investments? a. An investment that offers you $130 a year in perpetuity with the payment at the end of each year. (Round your answer to 2 decimal places.) Present value $ 1,857.14 b. A similar investment with the payment at the beginning of each year. (Do not round intermediate calculations. Round your answer to 2 decimal places.) Present value $ 1,987.14 C. A similar investment with the payment spread evenly over each year. (Do not round intermediate calculations. Round your answer to 2 decimal places.) Present value $ 1,920.24