To find which truck will arrive first, you need to find each vehicle's mph. To get the mph of each vehicle you just need to divide the distance by time.
The volume of the <span>goldfish pool is V= 0.5ft x 1.5ft x 3ft=2.25 ft^3 so 7.5gallons ----------> 1 ft^3 x=? <----------- </span>2.25 ft^3 <span>x= 2.25 x 7.5 / 1= 16.87 gallons the answer is </span>16.87 gallons of water <span>