The water level in a rectangular swimming pool measuring 60 feet by 10 feet is to be lowered by 6 inches. How many gallons of water must be removed? (1 cu ft = 7.5 gallons)	Choose the correct option: A) 100 B) 2250 C) 750 D) 1200 E) 5625
6 inches = 1/2 feet (there are 12 inches in a foot.), so  60*10*1/2= 
<gadget id="calculator"> 60*10*1/2</gadget>
<output>300</output>
300 feet^3 of water must be removed, which equals to   300*7.5= 
<gadget id="calculator">  300*7.5</gadget>
<output>2_250</output>
2250 gallons.   Answer: 2250
<result>B</result>
The water level in a rectangular swimming pool measuring 60 feet by 10 feet is to be lowered by 6 inches. How many gallons of water must be removed? (1 cu ft = 7.5 gallons)