Answer the following question.
A boat is traveling across a square lake at 10 MPH. It takes 2 hours to go across the length of the lake. It then travels the whole width of the lake at the same speed, which takes 30 minutes. How many square miles is the lake?
Step-by-step reasoning process: The lake is 20 miles across because 2 x 10 = 20. If takes .5 hours to go from bottom to top because 30 / 60 = .5. The lake is five miles from bottom to top because 10 x .5 = 5. The square mileage is 100 because 20 x 5 = 100.
The answer is 100.

Answer the following question.
Trent walked 4 blocks from his house to the bus stop. He rode the bus 7 blocks to the library. Later, he came home the same way. How many blocks did Trent travel in all?
Step-by-step reasoning process: On the way to the library, Trent went 4 blocks + 7 blocks = 11 blocks. Trent came home the same way so he went 11 blocks + 11 blocks = 22 blocks.
The answer is 22.

Answer the following question.
A cattle breeder owns 52 dairy cows. Each cow gives 1000 oz of milk per day. Calculate the amount of milk produced per week by the cows.
Step-by-step reasoning process: Per day, the amount of milk produced is 1000 * 52 = 52000 oz. Per week, the amount of milk produced is 52000 * 7 = 364000 oz.
The answer is 364000.

Answer the following question.
Elias uses a bar of soap every month. If each bar of soap costs $4, how much does he spend on bars of soap in two years?

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: A year is 12 months, so Elias spends 4 * 12 = $48 per year on bars of soap. In two years, he spends 2 * 48 = $96 on bars of soap.
The answer is 96.