What is the quotient of (3a⁴ + 12a³ - 12a² - 48a) divided by 3a? A. a³ + 4a² - 4a - 16
B. a³ + 4a² + 4a - 16
C. a³ + 4a² - 4a - 18
D. a³ + 4a² - 4a + 18

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?