Julie wrote (15-6)-3=15-(6-3).is julie's equation sense or nonsense? do you think the associative property works for subtraction? explain.

36 inches/second = yards/minute how many yards?

An air conditioning system can circulate 350 cubic feet of air per minute. how many cubic yards of air can it circulate per minute?

If, while training for a marathon, you ran 60 miles in 2/3 months, how many miles did you run each month? (assume you ran the same amount each month) write your answer as a whole number, proper fraction, or mixed number in simplest form. you ran __ miles each month.