Acomputer technician charges a flat rate for home visits plus $55 per hour. the technician bills $190 for a 2-hour home visit to install a new hard drive. the equation y − 190 = 55(x − 2) gives the total amount y the technician charges for x hours of work. what is the equation in slope-intercept form

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?