Answer:
4 times
Step-by-step explanation:
1 quart is equivalent to 32 fluid ounces.
If each eruption consumes 8 fluid ounces of vinegar. Assuming that the amount of vinegar required per eruption is constant, the number of times Tanvi can make her volcano erupt is:
Tanvi can make her volcano erupt 4 times with 1 quart of vinegar.
11 each
360/2.75=130.9
rounding up, 131x2.75=360.25
131/12=10.9 boxes each
therefore each girl will have to sell 11 boxes
B
x=-5