Tom Thompson expects to invest $21 , 000 at 12% and, at the end of a certain period, recelve $102 , 629 . How many years will it be before Thompson recelves the payment? (PV of \$1. EV of \$1, PVA of \$1, and FVA of S1) (Use appropriate factor(s) from the tobles provided. Round "Table Factor" to 4 decimal places.).