Question: Elizabeth has 20 dollars and wants to buy pens and pencils. Each pencil costs $1.60 and each pen cost 2 dollars. How many pencils can she buy with her 20 dollars if she wants 6 pens?
Answer with step-by-step thinking: Elizabeth spends 6 * 2 = 12 dollars on pens. Elizabeth has 20 - 12 = 8 dollars to spend on pencils. Elizabeth can buy 8 / 1.6 = 5 pencils.
So the answer is 5.


Question: Amber and Josh are flying to France for vacation. Their flight leaves at 8:00 pm and as an international flight, it's recommended that they check in 2 hours early. It will take 45 minutes to drive to the airport and another 15 minutes to park their vehicle and make their way to the terminal. What is the latest time they can leave their house to make it to the airport in time?
Answer with step-by-step thinking: It will take 45 minutes to drive to the airport and 15 minutes to park so that's 45 + 15 = 60 minutes (1 hour). They need to check in 2 hours early and it will 1 hour to drive there and park so that's 2 + 1 = 3 hours. Their flight leaves at 8:00 pm and it will take 3 hours to drive there and check in so the latest they can leave is 8 - 3 = 5:00 pm.
So the answer is 5.


Question: James buys a weight vest for $250. He then buys 200 pounds of weight plates for $1.2 per pound. A 200-pound weight vest would cost $700 but there is a $100 discount. How much does he save with his vest?
Answer with step-by-step thinking:

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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The weight plates cost 200 * 1.2 = $240. So his vest cost 250 + 240 = $490. He could get the other vest for 700 - 100 = $600. So he saved 600 - 490 = $110.
So the answer is 110.