The graph shows the amount of money left after buying video games. Find the slope of the line

What is the slope of the equation 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?

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle