On a floor plan, a sofa is represented by the rectangle formed by the points ( -5, 2), by (1,2), (-5,5.5), and (1,5.5). What is the perimeter of the sofa? Each unit represents one foot.

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?