Nate and his friends are building a skateboard ramp for an upcoming contest. the length of the ramp on the blueprint is 7.6 inches. if the scale on the blueprint is 1 inch to 4 feet, what is the actual length of the ramp?

a. 15.2 feet
b. 19 feet
c. 30.4 feet
d. 38 feet

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?