The function for a is (f o g) (x) = 8x^2-10.
Explanation
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I already knew that the g of x is equal to

so I substitute inside of the g of x

=======>

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simplify it

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If "4/2/7" is all we have to work with, then PEMDAS rules will save the day. Do the division from left to right.
4/2 becomes 2. Then we have 2/7, a proper fraction. I don't see where an improper fraction would come from in this case.
The woman wouuld save 1/10 or 1 tenth of her salary
Answer:
$16.25
Step-by-step explanation:
4 goes into 65 16 r1
which = 16.25