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Pani-rosa [81]
3 years ago
10

A book costs $12.50 plus sales tax. After tax it costs $13.25. What is the sales tax rate?

Mathematics
1 answer:
WINSTONCH [101]3 years ago
6 0

Answer:

The rate of sales tax is 6%.

Step-by-step explanation:

First you must subtract 12.50 from 13.25

This brings you to .75

Then, divide .75/12.50 to get 0.06 which is equivalent to 6 percent.

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<h3>Answer: B)  2.9  approximately</h3>

==================================================

Explanation:

The weird or fancy looking E symbol is the greek uppercase letter sigma. It is effectively the english version of S to represent summation. So we add up all the (x-\overline{x})^2 terms to get this. Luckily this has already been done for us in the table where they wrote "sum = 34", so \sum(x-\overline{x})^2 = 34

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Step-by-step explanation:

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