Mei is at the store buying cheese. the cost of the cheese is $0.42 per ounce. she buys 8 ounces of the cheese. how much money does mei spend on the cheese?

What is the standard deviation of the following data set rounded to the nearest tenth? 3, 17, 18, 15, 12, 21, 9

Which of the statements about the graph of the function y = 2x are true? check all of the boxes that apply. the domain is all real numbers x because the exponent of 2 can be any real number when the x-values increases by 1 unit, the y-value multiplies by 2. the y-intercept is (0, 1). the graph never goes below the x-axis because powers of 2 are never negative. the range is all real numbers.

Which type of graph would allow us to quickly see how many students between 100 and 200 students were treated?