Respuesta :
Volume = (30ft x 20ft x 6ft) x (7.5 gal/ft³)
= ( 3,600 ft³ ) x (7.5 gal/ft³)
= (3,600 x 7.5) gal
= 27,000 gal .
volume=legnth tiwmes width times height
legnth=30
width=20
height=6
V=30*20*6
V=3600 cubic feet
7.5 gallon per 1 cubif feet
7.5*3600=27000
answer is 27000gallon