Come up with a question and reasoning that would justify [6] as the answer.
The question is: A woman needs to buy 16 oz of butter for a dessert recipe. She can either buy a single 16 oz package of the store-brand butter for $7, or she can buy an 8oz package of store butter for $4 and use a coupon to get an additional two 4 oz packages that normally sell for $2.0 each at a 50% discount (which is applied to each 4oz package separately). What is the lowest price she can pay for the 16 oz of butter she needs?
Reasoning: If she uses the coupon, she will pay 2 * 0.5 = $1 for each 4oz package. Thus, she will pay 4 + 2 * 1 = $6 in total for the 8oz package and the two 4oz packages she needs to reach 16 oz of butter when using the coupon. Therefore, the lowest amount she can pay is $6, as this is cheaper than the $7 price for a 16 oz package.

Come up with a question and reasoning that would justify [50] as the answer.
The question is: Anna can read 1 page in 1 minute. Carole can read as fast as Anna but at half the speed of Brianna. How long does it take Brianna to read a 100-page book?
Reasoning: If Anna can read 1 page in 1 minute, then her speed is 1 / 1 = 1 page per min. If Carole can read at Anna's same speed then her speed is also 1 page per min. If Carole is only half the speed of Brianna, then that means Brianna is twice as fast as Carole, so 2 * 1 page per min = 2 pages per min. If a book is 100 pages long and Brianna can read 2 pages per minute, then it will take her 100 / 2 = 50 minutes to read the book.

Come up with a question and reasoning that would justify [448] as the 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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The question is: Two alien spacecraft on a sightseeing tour of Earth left New Orleans airport at 3:00 pm to travel the 448-mile distance to Dallas by air. Traveling nonstop, the first spacecraft landed in Dallas at 3:30 pm, while the second spacecraft landed in Dallas thirty minutes later. Assuming both spacecraft traveled at constant speed, what was the difference in speed, in miles per hour, between the two spacecraft?
Reasoning: The first spacecraft flew for 30 minutes, or 30 / 60 = 1 / 2 hour. The second spacecraft flew for 30 + 30 = 60 minutes, or 1 hour. Thus the first spacecraft traveled at a speed of 448 miles in 1 / 2 hour, or 448 / (1 / 2) = 896 miles per hour. The second spacecraft traveled 448 miles in 1 hour, or 448 / 1 = 448 miles per hour. The difference in speed, in miles per hour, between the two spacecraft was 896 - 448 = 448 miles per hour.