First, let's find g(4). After we find it, we can substitute the value into 
.
To find g(4), we need to substitute x = 4 into the function 
, as shown below:
Now that we have found g(4) = 9, we can substitute this value in for 
in .
f(g(4)) is equal to 28.
A.360 / 25= 14.4
B. 480 / 32= 15
B Is getting better mileage
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2√72 / √8 ± √2
If the denominator is √8 + √2,
2√72 / √8 + √2
= 2√(2*2*2*3*3) / √(2*2*2) + √2
= 2*2*3√2 / 2√2 + √2
= 12√2 / 3√2
= 4
She would have to use 11 1/4 milliliters of perfume 3 3/4= 15/4 multiply 15/4 by 3/1
15/4 (3/1)= 45/4= 11 1/4
