Answer the following question.
Susan earned $600 from babysitting over the summer. She went shopping and spent half of it on clothes. Then she spent half of what was left on books. How much money did she have left?
Step-by-step reasoning process: Susan spent 600 / 2 = 300 on clothes. After buying clothes she had 600 - 300 = 300 dollars left. She spent 300 / 2 = 150 dollars on books. She had 300 - 150 = 150 dollars left.
The answer is 150.

Answer the following question.
John buys a box of 40 light bulbs. He uses 16 of them and then gives half of what is left to a friend. How many does he have left?
Step-by-step reasoning process: He had 40 - 16 = 24 left after using some. Then after giving some away he is left with 24 / 2 = 12.
The answer is 12.

Answer the following question.
Wally buys bears at the park. A bear is priced at $4.00 for the first bear and a discount of 50 cents per bear is given after that. How much does Wally pay for 101 bears?
Step-by-step reasoning process: If the price of an additional bear drops by fifty after the first purchase, the price of each additional bear is $4.00 - $0.50 = $3.50. Since Wally bought 101 bears, he was charged fifty cents less on 101 - 1 = 100 bears. The total cost for the 100 bears is 100 * $3.50 = $350. For the 101 bears, Wally paid a total of $350 + $4 = $354.
The answer is 354.

Answer the following question.
Ruth is counting the number of spots on her cow. The cow has 16 spots on its left side and three times that number plus 7 on its right side. How many spots does it have total?
Step-by-step reasoning process: First multiply the number of spots on the left side by 3: 16 spots * 3 = 48 spots. Then add 7 to find the number of spots on the right side: 48 spots + 7 spots = 55 spots. Then add the number of spots on each side to find the total number of spots: 55 spots + 16 spots = 71 spots.
The answer is 71.