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fgiga [73]
4 years ago
7

A clothing store is having a 20% off sale. Renata has a coupon for $5 off. The function f(x)=0.8x - 5 represents the final cost

after the discount and machine for a timed A, B, C, and D.

Mathematics
1 answer:
Dafna1 [17]4 years ago
8 0
To find the answer to A and C, substitute the variable x with the input amount. Ex. f(x) = 0.8 (75) - 5 then solve. For the answer to B and D substitute the f(x) with the output. Ex. 75 = 0.8x -5.
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