Answer: C
Explanation:
It's easy! Don't worry!
f(x) = 1/2(3x+7)
f(9) = 1/2(3(9)+7)
f(9) = 1/2(27+7)
f(9) = 1/2(34)
f(9) = 17
Trust me when you finish algebra this stuff is cake not going to lie. I did it under a minute. ;)
Also, gl passing algebra!
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