What is being done to the variable in the equation 8/-7 = 84? It's being divided by 84.
It's being multiplied by 84.
It's being divided by -7.
It's being multiplied by -7.

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.