Please help, thank you!

In eight years, when he is discharged from the Air Force, Steve wants to buy a $20,000 power boat. Click here to view Exhibit 148-1 and Exhibit 148-2, to determine the appropriate discount factor(s) using tables. Required: What lump-sum amount must Steve invest now to have the $20,000 at the end of eight years if he can invest money at: (Round your final answer to the nearest whole dollar amount.)