Tell whether the set of ordered pairs (9,6) , (11,8), and (22,19) represents a direct variation.

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

An optical inspection system is used to distinguish among different part types. the probability of a correct classification of any part is 0.92. suppose that three parts are inspected and that the classifications are independent. let the random variable x denote the number of parts that are correctly classified. determine the probability mass function of x. round your answers to four decimal places (e.g. 98.7654). x f(x) 0 1 2 3

Jane moves from a house with 71 square feet of closet space to an apartment with 45.44 square feet of closet space. what is the percentage decrease of jane’s closet space?