math 1103 quiz question

Question

a circular backyard pool has a diameter of 22 feet and is 3 feet deep. one cubic foot of water has a capacity of approximately 7.48 gallons. if water costs $2 per thousand gallons, how much, to the nearest dollar, will it cost to fill the pool ?

Answer 1

3pi(22/2)= 33pi ft^3

times 7.48/1000 times $2

= 33(3.141593)(14.96)/1000

= $1,550.94/1000

=$1.55

= about $2 to fill the pool