Jeff is filling a 600-gallon hot tub using a hose.Water comes out of the hose at a rate of 15 gallons per minute.Complete the table below to show the volume of water (V) in tank after t minutes.

we have that
The linear equation is equal to
V=-15t+600
so
For t=1
V=-15(1)+600
V=585 gal
For t=2
V=-15(2)+600
V=570 gal
For t=3
V=-15(3)+600
V=555 gal
For t=4
V=-15(4)+600
V=540 gal
For t=5
V=-15(5)+600
V=525 gal