[Question]: If Aang caught 7 fish, then Sokka caught 5 fish, and then Toph caught 12 fish, what is the average amount of fish that each person caught?
[Answer]: Aang, Sokka and Toph caught 7 fish + 5 fish + 12 fish = 24 fish. The average catch of fish per person is 24 fish / 3 people = 8 fish per person.
So the answer is 8.

[Question]: Steve puts $100 into the bank. Each year he earns 10% interest on the money in the account. How much money will be in the bank after 2 years?
[Answer]: At the end of the first year, there will be $100 * (110 / 100) = $110 in the bank account. At the end of the second year, there will be $110 * (110 / 100) = $121.
So the answer is 121.

[Question]: Barbara has 9 stuffed animals. Trish has two times as many stuffed animals as Barbara. They planned to sell their stuffed animals and donate all the money to their class funds. Barbara will sell her stuffed animals for $2 each while Trish will sell them for $1.50 each. How much money will they donate to their class funds?
[Answer]:
Barbara will be able to sell all her stuffed animals for 9 x $2 = $18. Trish has 9 x 2 = 18 stuffed animals. Trish will be able to sell all her stuffed animals for 18 x $1.50 = $27. Therefore, they will donate a total of $18 + $27 = $45 to their class funds.
So the answer is 45.