kesofly
Answered

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Lenore lives in a state where sales tax is 10%. This means you can find the total cost of an item, including tax, by using the expression c + 0.10c, where c is the pre-tax price of the item.

Use the expression to find the total cost of an item that has a pre-tax price of $84.00.

Sagot :

Function is

  • f(c)=c+0.10c

Put 84.00$

[tex]\\ \tt\hookrightarrow 84.00+0.1(84.00)[/tex]

[tex]\\ \tt\hookrightarrow 84.00+8.4[/tex]

[tex]\\ \tt\hookrightarrow 92.4[/tex]

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