The perimeter is 72 because all sides on a square are the same measurements so you just have to do 18 times 4 to get 72
Answer:
5 (grandson's age now)
35 (son's age now)
60 (father's age now)
Step-by-step explanation:
Do 1/2 x 1/10 which equals 10/2. 10/2 is 5 gallons if u divide 10 divided by 2. So the unit rate is 5 gallons per minute.
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