8. fill in the missing reasons (one for each step). given: 3x – 6y = 27; x = 5 prove: -2 = y a. 3x – 6y = 27; x = 5 b. 15 – 6y = 27 c. -6y = 12 d. y = -2 e. -2 = y

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?