Tom Thompson expects to invest $7.000 at 6% and, at the end of a certain period, receive $19.980. How many years will it be before Thompson receives the payment? (PV of $1. FV of $1. PVA of $1. and FVA of $1 (Use appropriate factor(s) from the tables provided. Round "Table Factor" to 4 decimal places.) Future Value Present Value Table Factor Years years