Jonathan enjoys walking and running for exercise, and he has three different exercise routines. On Mondays, he walks at 2 miles per hour. On Wednesdays, he walks at 3 miles per hour. And on Fridays, he runs at 6 miles per hour. On each exercise day, he travels 6 miles. What is the combined total time, in hours, he spends exercising in a week? Give the rationale and then the answer.
Let's think step by step. On Mondays, he walks 6 miles at 2 miles per hour, for a length of 6 / 2 = 3 hours. On Wednesdays, he walks 6 miles at 3 miles per hour, for a length of 6 / 3 = 2 hours. And on Fridays, he runs 6 miles at 6 miles per hour, for a length of 6 / 6 = 1 hour. The combined total time he spends exercising in a week is 3 + 2 + 1 = 6 hours.. The answer is: 6.

Hendricks buys a guitar for $200, which is 20% less than what Gerald bought the same guitar for. How much did Gerald pay for his guitar? Give the rationale and then the answer.
Let's think step by step. Let G be the price Gerald paid for his guitar. Then 0.8 * G = $200. So G = $200 / 0.8 = $250.. The answer is: 250.

A window is made up of 8 glass panes. Each pane has a length of 12 inches and a width of 8 inches. What is the area of the window? Give the rationale and then 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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Let's think step by step. The area of a glass pane is 8 x 12 = 96 sq in. The area of the window is 96 x 8 = 768 sq in.. The answer is: 768.