The answer is 72 (--> second choice).
I can prove it without calculator so you believe me:

The last one is correct answer
Answer:
$40
Step-by-step explanation:
2 1/2 times the week
8 x 2.5 = 20
12 x 2.5 = 30
40 x 2.5 = 100
Answer: 48
Step-by-step explanation: there is 4 cups in a quart