What the prompt gives you is : Rusty has a 74-foot rope in total which you need to cut in half (in other words, divide it by 2) and see how many feet are in each of the equal pieces.
So,
74 / 2 = 37
Each piece would be 37 feet long.
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To check your answer:
37 + 37 = 74
Yay! It is correct! :D