[Question]Terry's mom brought home 4 different colored dogs from the shelter. The brown dog weighs 4 pounds. The black dog weighs 1 pound more than the brown dog. The white dog weighs twice as much as the brown dog. The grey dog weighs 2 pounds less than the black dog. What's the average weight of all the dogs?
[Answer]Since the black dog weighs 1 pound more than the brown dog, the black dog weighs 1 + 4 = 5 pounds. The white dog weighs 4 * 2 = 8 pounds. Because the grey dog weighs 2 pounds less than the black dog, the grey dog weighs 5 - 2 = 3 pounds. The total weight of all dogs is 4 + 5 + 8 + 3 = 20 pounds. The average weight of all the dogs is 20 / 4 = 5 pounds. The answer is 5.

[Question]Leila went to the supermarket to get some groceries. Then she headed to her mechanic to get her automobile fixed. If fixing her automobile cost $350 which was $50 more than thrice the amount she spent at the supermarket, how much has she spent altogether?
[Answer]Reversing the steps to obtain the amount she spent at the supermarket, $50 less than $350 is $350 - $50 = $300. If $300 was thrice the amount she spent at the supermarket, then the amount spent at the supermarket was $300 / 3 = $100. In addition to what she spent fixing her auto, she spent $100 + $350 = $450 altogether. The answer is 450.

[Question]Four adults with 32 teeth went to the dentist for a checkup after realizing they were having severe tooth pain. They were found to have different numbers of damaged teeth, and each person had some teeth removed. The first person had 1/4 of all his teeth removed, and the second person had 3/8 of his teeth removed, the third person had half of his teeth removed, while the last person only had 4 teeth removed. What's the total number of teeth removed at the dental clinic?
[Answer]The first person had 1 / 4 of all his teeth removed, a total of 1 / 4 * 32 = 8 teeth. The second person had 3 / 8 of his teeth removed, meaning 3 / 8 * 32 = 12 of his teeth were removed. Together, the first and the second person had 12 + 8 = 20 teeth removed in total. The third person had half of his teeth removed, which were 1 / 2 * 32 = 16 teeth. The first three people had a total of 20 + 16 = 36 teeth removed from their mouth. The last person only had 4 teeth removed, bringing the total number of teeth removed at the dentist clinic to be 36 + 4 = 40 teeth. The answer is 40.

[Question]A fruit and vegetable merchant installed 15 kg of carrots, 13 kg of zucchini and 8 kg of broccoli. He sold only half of them. What mass of vegetables did he sell?
[Answer]

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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You first need to know the total weight of the vegetables, so you add each quantity: 15 + 13 + 8 = 36 kg. Then you have to find half of 36: 36 / 2 = 18 kg. So, he sold 18 kg of vegetables. The answer is 18.