Mia buys ink at the office supply store for a business. She buys 3 printer cartridges, and the sales tax is 7%. Write an expression to represent the total cost of ink supplies in different ways. Let c represent

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?