Question

In Mona’s new video game she earns 30 points for each fish caught and 80 points for each octopus captured, but she loses 15 points every time she captures a crab. Which expression represents the total number of points Mona will earn if she catches x fish, y octopi, and z crabs?

Answer 1

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I believe the answer is:

30x + 80y - 15z. The question tells us that she earns 30 points for each fish, and since we do not know how many, we just write 30x, then we add 80 points for each octopus, so that's + 80y, and then subtract 15 points for each time she captures a crab, so - 15z.

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