If the interest rate is $9\%$ compounded annually, what is the value of the following three investments?

a$.$ An investment that offers you $$240$ a year in perpetuity with the payment at the end of each year.

Note: Round your answer to $2$ decimal places.

b$.$ A similar investment with the payment at the beginning of each year.

Note: Do not round intermediate calculations. Round your answer to $2$ decimal places.

c$.$ A similar investment with the payment spread evenly over each year.

Note: Do not round intermediate calculations. Round your answer to $2$ decimal places.

c$.$ Present value