Micheal has 1,526 songs downloaded on his device. Micheal continues to down load 23 songs each week. Find the slope, y intercept and equation of this problem

At the beginning of a call to the cable company, a message tells customers, "after you finish talking to our customer service representative, you will be asked to take a five-question survey about the level of service you recieved. it would be appreciated if you could stay on the line to answer the survey questions." what type of sampling is the cable company using?