Question: Micah has 7 fish in his aquarium. Kenneth has three times as many fish in his aquarium and Matthias has 15 less fish than Kenneth in his aquarium. How many fish do the boys have in total?
Answer with step-by-step thinking: Kenneth has 7 x 3 = 21 fish in his aquarium. Matthias has 21 - 15 = 6 fish in his aquarium. In total, the boys have 7 + 21 + 6 = 34 fish.
So the answer is 34.

Question: Adam bought 15 apples on Monday. On Tuesday he bought 3 times that quantity. On Wednesday he bought 4 times the quantity he bought on Tuesday. What is the total quantity Adam bought on these three days?
Answer with step-by-step thinking: On Tuesday, Adam bought 3 * 15 apples = 45 apples. On Wednesday, Adam bought 4 * 45 apples = 180 apples. Adam bought 15 apples + 45 apples + 180 apples = 240 apples on the three days.
So the answer is 240.

Question: Susie has $200 in her piggy bank. If she puts 20% more money into her piggy bank, how much money she will have?
Answer with step-by-step thinking:
If Susie puts 20% more money into her piggy bank, she'll have 20 / 100 * 200 = $40 more in her piggy bank. The total amount of money in Susie's piggy bank will increase to $200 + $40 = $240.
So the answer is 240.