The answer is 7x so I this helps you please thank me plz bye
Answer:
10
Step-by-step explanation:
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12.8$, you would divide 2.40 by 3 to get the cost per ounce. Then multiply that by 16 to get the cost for one pound.
To solve system of equations by substitution, we are going to use the first equation to substitute into the second equation wherever you see y.



_______________


___ ____

(rounded)
Next, substitute x = 3.29 into the first equation, or to any equation you'd like, to find y.




So, your final answer would be (3.29, 4.87).
F(g(x))
sub g(x) for every x in f(x)
f(g(x))=2(g(x))-4
f(x^2)=2(x²)-4
f(g(x))=2x²-4