Evaluate the function for x = 2: f (x) = 7x-5

A. 9

B. 19

C. - 9

D. - 19

I'm completely lost

Which function matches the mapping shown? A) f (x) = x2 B) f (x) = 2x C) f (x) = x + 2 D) f (x) = 2x + 2

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Is 20 miles every 3 hours a unit rate

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Which of the following steps would be most useful in proving that a circle with a radius of 3 inches is similar to a circle with a radius of 2 feet?