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A pack of cinnamon-scented pencils sells for $8.00. What is the sales tax rate if the total cost of the pencils Is $8.56 The sales tax rate is ___%

Sagot :

To find the tax rate we can use the rule of three.

[tex]\begin{gathered} 8\rightarrow100 \\ 8.56\rightarrow x \end{gathered}[/tex]

Then,

[tex]x=\frac{8.56\cdot100}{8}=107[/tex]

Now, since 8.56 dollars represents 107% of the prices, this means that the tax rate is 7.