If you are buying at item at a store for a price of $49, and there is a 8.2% tax added on top, what would be the total amount due at the register, to the nearest cent?

Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?

In a column proof the right column states your reasons

I’m confused on how to work the pie charts