Abag contains 50 marbles, 10 of which are blue, 8 are red, 20 are green, and 12 are purple. marcie takes a marble out of the bag, records the color, and returns it to the bag. how many red marbles should she expect after 500 trials?

List the sides of δrst in ascending order (shortest to longest) if: m∠r =x+28°, m∠s = 2x+16°, and m∠t = x+12

Which graph represents the linear function below? y-4= (4/3)(x-2)

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?