Which of the following is an example of cluster sampling? Combining all food workers from the 67 Guilford County elementary schools and randomly choosing 150 at random to interview Randomly choosing 3 food workers from each of the 67 schools and interviewing the ones choosen Randomly choosing 8 elementary schools from the 67 in Guilford county and interviewiing all food workers at each of these schools

Mason and christian go to the movie theater and purchase refreshments for their friends. mason spends a total of $45.75 on 3 bags of popcorn and 6 drinks. christian spends a total of $71.50 on 6 bags of popcorn and 4 drinks. write a system of equations that can be used to find the price of one bag of popcorn and the price of one drink. using these equations, determine and state the price of a drink, to the nearest cent.