You SB able to hear the fuel pump run to pressurize the fuel line for a few seconds immediately after turning the key switch to on (not start) and then stop once pressure has been achieved. Have someone turn on key while someone listens near the tank. If you hear it run, you can eliminate the question if there is power to pump. If no hear, it may mean there's no power or bad pump, and then you can proceed on your troubleshooting quest into the system for power/no-power at the pump harness or for pressure at the fuel rails.
It can also be as simple as a blown fuse or bad pump relay. Be sure to check there also before tank dropage
2004 Fleetwood Pace Arrow 37C
Workhorse W22 Chassis