The grades on a mathematics midterm are normally distributed with = 71 and o = 4.5. Rob scored 59 on the exam. Find his z-score and write your result in the empty box provided below round to two decimal places.

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

Which value of y will make the inequality y< -1 false?

Select the correct answer from each drop-down menu. the table shows the annual sales revenue for different types of automobiles from three automobile manufacturers. sales revenue (millions of dollars) suv sedan truck marginal total b & b motors 22 15 9 46 pluto cars 25 27 10 62 panther motors 26 34 12 72 marginal total 73 76 31 180 the company with the highest percentage of sales revenue from sedans is . of the annual sales revenue from suvs, the relative frequency of pluto cars is .