Answer:
The last one.
Step-by-step explanation:
Because it is being multiplied in parathenses it means that both the numbers would have to be multiplied.
22.5 sq. ft.
30 cans
We can use ratios
15 cans x cans
---------------- = ------------------
7*2 people days 4*7 people days
Using cross products
15 * 28 = 14 * x
Divide by 14
15 * 28/14 = x
30 =x