Lets get started :)
18[tex] \frac{1}{2} [/tex] = [tex] \frac{37}{2} [/tex] → total amount of water that flowed out
4[tex] \frac{1}{4} [/tex] = [tex] \frac{17}{4} [/tex] → time
We should divide the amount of water that flowed out of the tank by the time period
And therefore the expression that finds the amount of water lost per hour will be your last option:
D) [tex] \frac{37}{2} [/tex] ÷ [tex] \frac{17}{4} [/tex]
