A18,000 gallon swimming pool contains 7,000 gallons of water of water when a hose is placed in the pool and begins adding water a 1100 per hour

y =mx + b

where is x is the time (hour)

y is the amount water in xhours

m is the rate of water being added

b is the initial amount of water

y = 1100x + 7000

7 ft 6 in means 7 1/2, because 6 in is 1/2 of a foot. 7 ft 8 in means 7 2/3 because 8 in is 2/3 of a foot. 23/3 = 7 2/3. 15/2 = 7 1/2.

23/3   *   15/2   = 57 1/2

step-by-step explanation: