4.
a restaurant bill for a group of people comes to a total of $125. this amount
included an 8% sales tax and a 20% tip, both based on the price of the food.
which equation could be used to find f, the cost of the food?
ar 125 = 0.28f
br 125 = 1.08f +0.20
c.) 125 = f +0.28
d., 125 = 1.28f

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Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

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