Answer the following question.
It's Ava's birthday party. Her parents bought a unicorn piñata for $13 and filled it with all of her favorite treats. They bought 4 bags of Reese's for $9 per bag, 3 bags of Snickers for $5 per bag, and 5 bags of Skittles for $7 per bag. How much did the unicorn piñata and the treats cost altogether?
Step-by-step reasoning process: The four bags of Reese's cost $9 x 4 = $36. The three bags of Snickers cost $5 x 3 = $15. The five bags of Skittles cost $7 x 5 = $35. Therefore, the unicorn piñata and the treats cost $13 + $36 + $15 + $35 = $99.
The answer is 99.

Answer the following question.
Jack went to a supermarket with $100 and bought 4 bottles of water. Then his mother called him and asked him to buy twice as many bottles as he already bought. Each bottle cost $2. Finally, he also bought half a pound of cheese and 1 pound of cheese costs $10. How much money does Jack have remaining?
Step-by-step reasoning process: Jack's mother asked him to buy 2 * 4 = 8 bottles of water. Thus Jack bought 4 + 8 = 12 bottles of water in total. Altogether, the bottles of water cost 12 * $2 = $24. The cheese cost 1 / 2 * $10 = $5. So Jack spent $24 + $5 = $29 on water and cheese. Since he started with $100, he now has $100 - $29 = $71 left.
The answer is 71.

Answer the following question.
In a class of 25 students, students were asked if they like French fries, burgers, or neither. 15 students said they like French fries and 10 said they like burgers, with these statistics including the responses of 6 students who said they like both French fries and burgers. How many students do not like either food?
Step-by-step reasoning process: There are 15 - 6 = 9 students who like French fries only. There are 10 - 6 = 4 students who like burgers only. So, 9 + 4 + 6 = 19 students like either French fries, burgers, or both. Hence, 25 - 19 = 6 students do not like either fries or burgers.
The answer is 6.

Answer the following question.
A deep-sea monster rises from the waters once every hundred years to feast on a ship and sate its hunger. Over three hundred years, it has consumed 847 people. Ships have been built larger over time, so each new ship has twice as many people as the last ship. How many people were on the ship the monster ate in the first hundred years?
Step-by-step reasoning process: Let S be the number of people on the first hundred years’ ship. The second hundred years’ ship had twice as many as the first, so it had 2S people. The third hundred years’ ship had twice as many as the second, so it had 2 * 2S = 4S people. All the ships had S + 2S + 4S = 7S = 847 people. Thus, the ship that the monster ate in the first hundred years had S = 847 / 7 = 121 people on it.
The answer is 121.