Help a girlie out and click the picture. #stressedout

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?

Find two numbers if their ratio is 4: 7 and their difference is 123.

Given f(x)=3x-5 describe how the graph of g compares with the graph of f.