The PTA is making pompoms for the school pep rally. The supplies cost $4, and they plan to
sell the pompoms for $1 each. Let x = the number of pompoms sold. Let y = the profit.
Graph the equation y = x - 4 to show the relationship between x and y.

What situation is an example of an observational study

Suppose that an airline uses a seat width of 16.516.5 in. assume men have hip breadths that are normally distributed with a mean of 14.414.4 in. and a standard deviation of 0.90.9 in. complete parts (a) through (c) below. (a) find the probability that if an individual man is randomly selected, his hip breadth will be greater than 16.516.5 in. the probability is nothing. (round to four decimal places as needed.)

Which represents the solution set of the inequality 5x-9 < 21? a. x < 12/5 b. x > 12/5 c. x > 6 d. x < 6