Question: The total cost of Olivia’s groceries was $42. The bananas cost her $12, the bread cost her $9, and the milk cost her $7. The only other groceries she bought were apples. In dollars, how much money did the apples cost her?
Answer: Step-by-step reasoning process: The combined cost of the bananas, bread, and milk was 12 + 9 + 7 = $28. The difference between this and the total is the cost of the apples, which must have therefore cost Olivia 42 – 28 = $14.
So the answer is 14.

Question: Carl is having a party on Saturday and is inviting 15 guests. He would like to make sure everyone, including himself, has at least 2 glasses of punch. Each glass holds 12 ounces of punch. How many ounces of punch does he need to buy for the party?
Answer: Step-by-step reasoning process: Including Carl, there will be 15 + 1 = 16 people at the party. Carl would like each person to be able to have 2 cups x 12 ounces = 24 ounces of punch. Carl needs to buy 16 x 24 = 384 ounces of punch.
So the answer is 384.

Question: Julio goes fishing and can catch 7 fish every hour. By the 9th hour, how many fish does Julio have if he loses 15 fish in the process?
Answer: Step-by-step reasoning process: Julio catches a total of 7 fish / hour * 9 hours = 63 fish. After losing some of the fish, Julio has 63 fish - 15 fish = 48 fish.
So the answer is 48.

Question: An unusual bicycle has 20 spokes on the front wheel and twice as many spokes on the back wheel. How many spokes does the bicycle have?
Answer:
Step-by-step reasoning process: The back wheel has double the spokes the front wheel has, which means the back wheel has 20 * 2 = 40 spokes. In total, the bicycle has 20 + 40 = 60 spokes.
So the answer is 60.