Answer:
274.4 gallons of water remains to be used.
Explanation:
Volume of the water in the tank = 280 gallon
Volume of water lost = 2% of 280 gallon =[tex]\frac{2}{100}\times 280 gallon=5.6 gallon[/tex]
Volume of water left after lost of 2% of water:
[tex]280 gallon - 5.6 gallon =274.4 gallon[/tex]
274.4 gallons of water remains to be used.