Question: John rents a car to visit his family. It cost $150 to rent the car. He also had to buy 8 gallons of gas to fill it up and gas is $3.50 per gallon. The final expense is $.50 per mile. If he drove 320 miles how much did it cost?
Answer: Step-by-step reasoning process: The gas cost 8 * 3.5 = $28. The mileage expenses cost 320 * .5 = $160. So in total he paid 150 + 28 + 160 = $338.
So the answer is 338.

Question: The area of a triangle with a given base and height is given by 1/2*base*height. What is the base length of a triangle with height 8 and area 24 square units?
Answer: Step-by-step reasoning process: Let b be the base of the triangle. (1 / 2) * b * 8 = 24. 4 * b = 24. b = 6.
So the answer is 6.

Question: Matilda had 20 chocolate bars and shared them evenly amongst herself and her 4 sisters. When her father got home from work, he was upset that they did not put aside any chocolates for him. They felt bad, so they each gave up half of their chocolate bars for their father. Their father then gave 3 chocolate bars to their mother and ate 2. How many chocolate bars did Matilda's father have left?
Answer: Step-by-step reasoning process: Matilda and her sisters each got 20 chocolate bars / 5 people = 4 chocolate bars / person. They each gave 4 / person / 2 = 2 chocolate bars / person to their father. Their father received 2 chocolate bars / person x 5 people = 10 chocolate bars. Their father had 10 chocolate bars - 3 chocolate bars - 2 chocolate bars = 5 chocolate bars left.
So the answer is 5.

Question: The GooGoo brand of clothing manufactures two types of shirts, one with 3 buttons and the other with 5 buttons. A large department store ordered GooGoo to manufacture 200 of each type of shirt. How many buttons will the GooGoo brand use to manufacturer all of the shirts for this order?
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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Step-by-step reasoning process: To make 200 of the first type of shirt, they will need 200 * 3 = 600 buttons. To make 200 of the second type of shirt, they will need 200 * 5 = 1000 buttons. To manufacture 200 each of both types of shirts, they will need to use 600 + 1000 = 1600 buttons.
So the answer is 1600.