What is a word problem that could be solved by evaluating the expression 3x - 5 for x = 5

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Answer the questions in the attachment. a rescue helicopter is at point a and a rescue boat is at point e. the helicopter pilot spots boats in distress at points d and c,with angles as marked in the diagram. figure abce is a rectangle. the altitude of the rescue helicopter, represented by ae, is 5000 feet.

Me with this one question, and i'll upvote the brainliest answer