3. The number of runs scored by the home teama
represented by (x + 7). The number of runs scored by the visiting team is
represented by (3x - 7). Write an expression to find how many more runs
the home team scored than the visiting team. Then evaluate the
expression if the value of x is 6. (Example 6)

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?