4.61 as a mixed number

Part a : solve -vp + 40 < 65 for v part b : solve 7w - 3r = 15 for r show your work .

What is the slope of the line that contains the points (-2,1) and (0,-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?