SOLUTION: The sales tax in one state is 7%. Write a function rule for finding the total cost of an item with selling price x. Then find the total cost of a CD player with a selling price of

Question 982166: The sales tax in one state is 7%. Write a function rule for finding the total cost of an item with selling price x. Then find the total cost of a CD player with a selling price of $150.

f(x) = 7 + x; $151.07
f(x) =1.07x; $160.50
f(x) = 0.07x; $10.50
f(x) = x � 7; $148.93

Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

The sales tax in one state is % or .
if selling price , then tax will be
then to find the total cost of a CD player with a selling price of $ you need to add the tax which is and you have the total cost of a CD player
a function rule for finding the total cost will be

then you have

so, your answer is ; $

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