Keith Riggins expects an investment of $54,509.60 to return $8,000 annually for several years. If Riggins earns a return of 10%, how many annual payments will he receive? (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.) Present Value Annuity Payment Table Factor Annual Payments payments