Which of the following could be the first step when solving the equation 4 – 3(x + 6) = 28?
A. Add 3 to both sides.
B. Subtract 4 from both sides.
C. Divide by – 3 on both sides.
D. Subtract 4 - 3.

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?