the hardware store where you work charges $.80 including tax, for a pound of nails. a customer purchases 5 3/4 pounds of nails.
1 answer:
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Answer:
see explanation
Step-by-step explanation:
let y = f(x), then
y = 11x - 1
Interchange x and y and solve for y
x = 11y - 1 ( add 1 to both sides )
x + 1 = 11y ( divide both sides by 11 )
y = , hence
(x) =
