A adds $6,000 to her savings on the last of each year. B adds $6,000 to his savings ok the last day of each year. They both earn a 10% interest rate of return. What is the difference in their savings account balances at the end of 30 years? Please show work.

Investor A adds $6,000 on the first day of each year. Investor B adds $6,00 on the last day of each year. they both rarn a 10% rate of return. What is the difference in their savings account balances at the end of 30 years. please show work