Mathematics
Mathematics, 18.10.2019 06:10, kat9940

Astore charges their customers based on the number of items that they buy. jane bought four items and was charged $15 and george bought twelve items and was charged $39. write a function to model the cost based on the number of items you buy. then determine how much you bought if you were charged $33.
a) f(x) = 3x + 3; f(10) = 33
b) f(x) = 3x + 3; f(33) = 102
c) f(x) =1/3 + 3; f(90) = 33
d) f(x) = 1/3x + 3; f(33) = 14

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