please show me thhe math. something isnt clicking

Paul borrows $5,000 from the bank and wishes to repay the amount in equal installments of $800 per year over a period of years. The payments will be made at the end of each year. The bank wishes to earn interest on this loan at 8%. Approximately how many years will it take for Paul to repay the loan? O 9 years O 6 years O 8 years O 7 years