The rectangular prism below is made up of smaller cubes. The total volume of the rectangular prism is 60 cubic feet. What is the volume, in cubic feet, of one of the smaller cubes?

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?