• anonymous
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. a. f(x) = x – 7;$148.93 c. f(x) = 7 + x; $151.07 b. f(x) = 0.07x;$10.50 d. f(x) =1.07x; \$160.50
Mathematics

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