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OpenStudy (anonymous):
If f(x) = 2x + 6, find f(7). A. 15 B. 6 C. 20 D. 14
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OpenStudy (anonymous):
C. 20
OpenStudy (anonymous):
plug in x = 7 to solve this problem
OpenStudy (anonymous):
it is c, what's the prob? x=7, plug in the question you will get 2(7)+6=20
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