The function f(x) = 1.50x + 12.50 relates how much Kelsey pays for digital service, f(x), to the number of movies, x, she streams in a month. What is the value and meaning of f(18)?

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x=18



f (18)=1,50.18+12,50


f (18)=27+12,50


f (18)=39,50

Answer:

If you're working on the same quiz as me, it should be D.

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