Reasoning & answer: CoT: He paid for 10 - 2 = 8 lessons. That means he pays 8 * $10 = $80.
The answer: 80
Question: Tom decides to take 10 dance lessons that cost $10 each, but he gets two of them for free. How much does he pay?

Reasoning & answer: CoT: First = 14 oz. Second = (1 / 2) * 14 = 7 oz. Third = 7 + 5 = 12 oz. 14 + 7 + 12 = 33 oz. There are 33 ounces of cereal in those 3 boxes.
The answer: 33
Question: There are 3 boxes of cereal. One box holds 14 ounces of cereal. Another box holds half the amount of the first box and 5 ounces less than the third box. How much cereal is there in all 3 cereal boxes?

Reasoning & answer: CoT: Mid - size:240 / 10 = 24 inches. Small Model:24 / 2 = 12 inches.
The answer: 12
Question: Ryan builds model mustang cars. A full size mustang is 240 inches long. The mid-size model that Ryan creates is 1/10th the size, and the smallest model that Ryan creates is half the size of the mid-size model. How many inches long is the smallest model mustang?

Reasoning & answer: CoT: If each battery charge costs $3.5, the total expense of 4 battery charges is 4 * 3.5 = $14. After his expense on battery charging, his balance was 20 - 14 = $6.
The answer: 6
Question:
Hawkeye is driving to his aunt. He has to charge his battery for $3.5 per charge. If he charged his battery four times, and his battery charging budget was $20, how much money was he left with when he reached his aunt's place?