A pack of 30 pencils cost $7.97 and a pack of 12 pencils cost $4.77. which is better? how do you know?
2 answers:
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F(x)=2x+5, g(x)=x-7
f(g(x))=2(x-7)+5=2x-14+5=2x-9
When x= -3:
<em>:)</em>
f(g(x))=2(x-7)+5=2x-14+5=2x-9
When x= -3:
<em>:)</em>