Q: Martin is organizing a party, and he invited many of his colleagues. He invited 5 people from his hometown and twice as many people from his school. Martin invited also as many people from his sports club as the sum of people invited from his hometown and his school. The remaining invitations represent 20% of the total previously mentioned. How many people can potentially come to the party Martin is organizing?
A: Martin invited 5 * 2 = 10 people from his school. People from the sports club got 5 + 10 = 15 invitations. So in total from the sports club, hometown and school, Martin invited 5 + 10 + 15 = 30 people. All other invitations are 20% of the previous total, which means 20 / 100 * 30 = 6. That means Martin invited to his party 30 + 6 = 36 people. The answer is 36.
Question: It takes David 10 minutes to wash 4 windows. David's house has 64 windows. How many minutes will it take David to wash all of the windows?
Answer: It takes 10 minutes to wash 4 windows and he has 64 windows so that breaks down to 64 / 4 = 16 units. It takes 10 minutes to wash a unit of windows and he has 16 units so 10 * 16 = 160 minutes. The answer is 160.
[Question]To make a shed in his backyard, Tom needs 1000 bricks. He can buy half of the bricks for 50% off of $.50. The other Half he needs to pay full price. How many dollars does Tom spend?
[Answer]Tom can buy 1000 / 2 = 500 for half price. He will spend $.50 / 2 = $.25 on the half - priced bricks. Thus, he will spend 500 * $.25 = $125 on the half - priced bricks. He will spend 500 * $.50 = $250 on the full - priced bricks. Thus, he will spend $125 + $250 = $375 total. The answer is 375.
Q: George and Amelia are picking oranges and apples at an orchard. George picks 45 oranges and 5 more apples than Amelia. Amelia picks 18 fewer oranges than George and 15 apples. How many fruits do they pick altogether?
A: Amelia picks 45 - 18 = 27 oranges. The total number of oranges that they pick is 45 + 27 = 72. George picks 15 + 5 = 20 apples. The total number of apples that they pick is 20 + 15 = 35. So, they pick 72 + 35 = 107 fruits altogether. The answer is 107.
Question: Jessa needs to make cupcakes for 3 fourth-grade classes that each have 30 students and a P.E. class with 50 students. How many cupcakes does she need to make?
Answer: For the fourth - grade classes, Jessa needs 3 classes * 30 cupcakes / class = 90 cupcakes. Adding the cupcakes for the P.E. class 50, she needs to make a total of 90 cupcakes + 50 cupcakes = 140 cupcakes. The answer is 140.
Q: Hazel and Razel are twins who share everything they receive. If Hazel received 6 shirts, while Razel received twice the number of shirts as Hazel. How many shirts do they have in total?
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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Razel received 6 x 2 = 12 shirts. Therefore, they have 12 + 6 = 18 shirts altogether. The answer is 18.