1. Factorise fully mx+cx+my+cy

2. Harry is x years old now.
Three years ago, Jenny was twice Harry's age. In three years time, Ahmed will be five times as old as jenny. Write an expression for Ahmeds age now.

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.