Q: Jenny makes and freezes pans of lasagna all week so she can sell them at the market on the weekend. It costs Jenny $10.00 in ingredients to make 1 pan of lasagna. If she makes and sells 20 pans over the weekend at $25.00 apiece, how much does she make after factoring in expenses?
A: Each pan costs $10.00 to make so for 20 pans, it will cost 10 * 20 = $200.00. She sells each of the 20 pans for $25.00 each so she will make 20 * 25 = $500.00. She makes $500.00 and spent $200.00 on ingredients so she makes 500 - 200 = $300.00. The answer is 300.
Question: Barney can perform 45 sit-ups in one minute. Carrie can do twice as many sit-ups per minute as Barney can. And Jerrie can do 5 more sit-ups per minute than Carrie can do. If Barney does sit-ups for 1 minute, and Carrie does sit-ups for two minutes, and Jerrie does sit-ups for three minutes, what would be the combined total number of sit-ups performed?
Answer: Carrie can do 2 * 45 = 90 sit - ups per minute. Jerrie can do 90 + 5 = 95 sit - ups per minute. In two minutes, Carrie would perform 90 * 2 - 180 sit - ups. And in three minutes, Jerrie would perform 3 * 95 = 285 sit - ups. Thus, in the scenario described, in total, the three would perform 45 + 180 + 285 = 510 sit - ups. The answer is 510.
[Question]Linda is painting her bedroom. Her bedroom has 4 walls, with the room being 20 feet wide by 20 feet long by 8 feet tall. One wall has a 3-foot by 7-foot doorway. A second wall has a 6-foot by 4-foot window. A third wall has a 5-foot by 7-foot doorway to a walk-in-closet. And the fourth wall is completely solid. What is the total area of wall space that Linda will have to paint?
[Answer]The solid wall is 8 ft. * 20 ft. = 160 sq. ft. The doorway is 3 ft. * 7 ft. = 21 sq. ft. The window is 6 ft. * 4 ft. = 24 sq. ft. The closet door is 5 ft. * 7 ft. = 35 sq. ft. The total area of the doors and windows is 21 sq. ft + 24 sq. ft. + 35 sq. ft. = 80 sq. ft. The solid wall is 160 sq. ft., so before the areas of the doors and window are taken into account, the total wall area is 4 * 160 sq. ft. = 640 sq. ft. Taking into account the doors and window, the total wall area Linda will have to paint is 640 sq. ft. - 80 sq. ft. = 560 sq. ft. The answer is 560.
Q: 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?
A: 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. The answer is 14.
Question: Alex has 4 new shirts. Joe has 3 more new shirts than Alex. If Ben has eight more new shirts than Joe, how many new shirts does Ben have?
Answer: Joe has 4 + 3 = 7 new shirts. Ben has 8 + 7 = 15 new shirts. The answer is 15.
Q: The number of math problems that Marvin practiced today is three times as many as the number of problems he solved yesterday. His friend, Arvin, has practiced twice as many math problems on each day. How many math problems have they practiced altogether if Marvin solved 40 math problems yesterday?
A:

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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If Marvin solved 40 math problems yesterday, he has solved 40 * 3 = 120 math problems today. The total number of math problems that Marvin has practiced is 120 + 40 = 160. Arvin has practiced twice as many as Marvin, so has practiced 160 * 2 = 320 problems. Together, Marvin and Arvin have solved 320 + 160 = 480 math problems. The answer is 480.