Mr. Holmes is buying mulch for his triangular shaped garden as shown. The mulch is $3.75 per bag. Each bag covers 18 square feet. How much will it cost to buy enough mulch for the garden?

Liam's parents are driving three times as fast as liam is biking, but they left later than he did. if his parents caught up with him two hours after he left, how much later than liam did they leave?

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

I’m stuck on this equation, anyone got the answer?