The two data sets show random samples of the costs, in dollars, of cars purchased at two dealerships yesterday. dealership 1: 25,000, 42,000, 37,000, 45,000, 120,000 dealership 2: 28,000, 95,000, 18,000, 19,000, 33,000 (a) what are the mean and the medians of each data set? (b) which measure of center will provide the most accurate estimate of the costs of cars purchased at the two dealerships?

Eileen purchased 3.4 pounds of apples at the total cost of $19.72. if she purchases 6.2 pounds of apples at this store, how much would it cost?

Asays "we are both knaves" and b says nothing. exercises 24–31 relate to inhabitants of an island on which there are three kinds of people: knights who always tell the truth, knaves who always lie, and spies (called normals by smullyan [sm78]) who can either lie or tell the truth. you encounter three people, a, b, and c. you know one of these people is a knight, one is a knave, and one is a spy. each of the three people knows the type of person each of other two is. for each of these situations, if possible, determine whether there is a unique solution and determine who the knave, knight, and spy are. when there is no unique solution, list all possible solutions or state that there are no solutions. 24. a says "c is the knave," b says, "a is the knight," and c says "i am the spy."

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?