Solve the problem.A store is discounting all regularly priced items by 75%. (i) Find a function f that computes the sale price of an item having a regular price of x. (ii) Find the regular price of an item that costs $84.59 on sale.
A. f(x) = x - 0.75; $85.34
B. f(x) = 0.75x; $112.79
C. f(x) = x - 0.75x; $338.36
D. f(x) = 0.75 + x; $83.84
Answer: C
Mathematics
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