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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. (2 points)
A.f(x) = x – 7; $148.93
B.f(x ) = 0.07x; $10.50
C.f(x ) = 7 + x; $151.07
D.f(x ) = 1.07x; $160.50
 2 years ago
 2 years ago
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. (2 points) A.f(x) = x – 7; $148.93 B.f(x ) = 0.07x; $10.50 C.f(x ) = 7 + x; $151.07 D.f(x ) = 1.07x; $160.50
 2 years ago
 2 years ago

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RohangrrBest ResponseYou've already chosen the best response.1
C.f(x ) = 7 + x; $151.07
 2 years ago

DirectrixBest ResponseYou've already chosen the best response.2
D.f(x ) = 1.07x; $160.50 Total Price = x + .07 x = 1.07 x Note: 7% = not 7 but 7/100 or .07. Percent means hundredths.
 2 years ago

HeroBest ResponseYou've already chosen the best response.1
General formula for Total Cost: Original Cost + Sales Cost = Total Cost And @Directrix is correct.
 2 years ago
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