Answer:
f=x21=x2f(2)=4
Step-by-step explanation:
42
So you basically replace the x with 2. So f(x) = x21, then it would change to f(2) = 2(21). Then you would just multiply 21 by 2 and you would get 42.
Hope this helps!
16 months for it to grow 8 inches
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