Even with looking at other example of this problem is still don't understand how to do it. I've also posted this same question on here but the person who responded answers were wrong. Please help and if you can, can you show where all your numbers are coming from. Thanks!

You deposit $13,000 annually into a life insurance fund for the next 10 years, after which time you plan to retire.

a. If the deposits are made at the beginning of the year and earn an interest rate of 6 percent, what will be the amount in the retirement fund at the end of year 10? (Do not round intermediate calculations. Round your answer to 2 decimal places. (e.g., 32.16) Future value b. Instead of a lump sum, you wish to receive annuities for the next 20 years (years 11 through 30. What is the constant annual payment you expect to receive at the beginning of each year if you assume an interest rate of 6 percent during the distribution period? (Do not round intermediate calculations. Round your answer to 2 decimal places. (e.g., 32.16) Annual payment c. Repeat parts (a) and (b) above assuming earning rates of 5 percent and 7 percent during the deposit period and earning rates of 5 percent and 7 percent during the distribution period. (Do not round intermediate calculations. Round your answers to 2 decimal places. (e.g., 32.16)) Value at Deposit Distribution Annual 10 Years Period Period payment 5 percent 5 percent 7 percent 7 percent 5 percent 7 percent