Peter is raking leaves. It takes him 15 minutes to rake 3 bags of leaves. If he keeps raking at the same rate, how long will it take him to rake 8 bags? Give the rationale and then the answer.
Let's think step by step. We are trying to figure out how long it will take Peter to rake 8 bags of leaves, so we'll call that Y. And we know Peter can rake 3 bags of leaves / 15 minutes = 8 bags of leaves / Y. Next, we will multiply to find the cross - products. 3 x Y = 15 x 8 or 3Y = 120. We want to get figure out Y, so we need to get it by itself by dividing by 3, like this: 3Y / 3 = 120 / 3 or Y = 40 minutes.. The answer is: 40.

Brandon sold some geckos to a local pet shop. Brandon sold the geckos for 100$. The pet store sells them for 5 more than 3 times that. How much does the pet store profit? Give the rationale and then the answer.
Let's think step by step. The pet store sells the geckos for 5 + 3(100) = 305$. Pet store profit: 305 - 100 = 205$.. The answer is: 205.

A guy goes to the tool shop and buys 5 sets of drill bits. Each set cost 6 dollars. He then pays 10% tax on the order. What was the total amount he paid? 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 drill bits cost 5 * 6 = $30. The tax came out to 30 * .1 = $3. So the total cost was 30 + 3 = $33.. The answer is: 33.