If there are 120 calories in 4 ounces of hot fudge, how many calories are in 8 ounces of hot fudge?

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two

There are 85 apples on the big tree, john picked out 15%. how many did john pick out?

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?