[Question]A pastry chef is making brownies but is running out of butter. The recipe he is following calls for 2 ounces of butter for every 1 cup of baking mix; however, it allows 2 ounces of coconut oil to be substituted for the 2 ounces of butter if necessary. The chef would like to use as much butter as possible before switching over and substituting coconut oil. If the chef had 4 ounces of butter remaining, and he plans on using 6 cups of baking mix, how many ounces of coconut oil will he end up using?
[Answer]Every 2 ounces of butter is enough to cover 1 cup of baking mix, so the chef's remaining 4 ounces of butter will be enough to cover 4 / 2 = 2 cups of baking mix. This leaves 6 - 2 = 4 cups of baking mix that will require the use of coconut oil as a substitute. Since each cup of baking mix requires 2 ounces of coconut oil, these 4 cups will require a total of 4 * 2 = 8 ounces of coconut oil. The answer is 8.

[Question]Tricia ordered three dozen eggs. She will use 1/4 of them for making crepes, and 2/3 of the remaining for making cupcakes. How many eggs are left to make sunny-side-up eggs for breakfast?
[Answer]Since a dozen is equal to 12, then 3 dozen eggs are equal to 12 x 3 = 36 eggs. Tricia will use 36 x 1 / 4 = 9 eggs for making crepes. So there are 36 - 9 = 27 eggs left. 27 x 2 / 3 = 18 eggs will be used for making cupcakes. Thus, there are only 27 - 18 = 9 eggs left to make sunny - side - up eggs for breakfast. The answer is 9.

[Question]Gordon owns 3 restaurants, his first restaurant serves 20 meals, his second restaurant serves 40 meals, and his third restaurant serves 50 meals per day. How many meals do his 3 restaurants serve per week?
[Answer]Gordon serves 20 x 7 = 140 meals in his first restaurant per week. He serves 40 x 7 = 280 meals in his second restaurant per week. At the third restaurant, he serves 50 x 7 = 350 meals per week. Therefore, he serves 140 + 280 + 350 = 770 meals in total per week. The answer is 770.

[Question]Chang's Garden has two kinds of apples. Sweet ones and sour ones. He can sell the sweet ones for $.5 an apple. The sour ones sell for $.1 an apple. 75% of the apples he gets are sweet and the rest are sour. If he earns $40, how many apples did his trees give him?
[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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25% of the apples are sour because 100 - 75 = 25. The average price of an apple sold is $.4 because .75(.5) + .25(.1) = .4. He got 100 apples because 40 / .4 = 100. The answer is 100.