Step-by-step explanation:
It is given that, an air conditioning system can circulate 320 cubic feet of air per minute. We need to find how many cubic yards of air can it circulate per minute?
1 yard = 3 foot
1 feet = (1/3) yard
320 feet = 106.66 yard

So, it will circulate 11.85 cubic yard of air per minute.
Answer:
3. Jonathon does 2 push-ups for every 15 crunches.
Step-by-step explanation:
Hope it helps
The surface area would be 3 times 4 which is 12cm3