Mr. Webb gave his wait a $5.60 tip on a $40 bill. What percent did he give the waiter?

And can you explain how you got that answer?

How do you find principle and simple interest

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?

    choose the correct definition for  extremo.  a.  end      b.  extra      c.  extract      d.  eventual