The revenue R from the sale of x cameras is given by R=54x−x2.The cost C of producing x cameras is given by C=18+45x. How many cameras must be produced and sold in order to break even

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?