The graph at the right shows four different direct variation equations plotted on the same coordinate grid. using what you know about direct variation, calculate the constant of proportionality (k-value) of each relationship and match it to a point on each line. choose from the k-values listed below. some may not be used.

k = -1
k = -9/2
k = 2/9
k = -1/5
k = 1/5
k = 3
k = -2
k = 1

point a __
point b __
point c __
point d __

The accompanying table shows the numbers of male and female students in a particular country who received bachelor's degrees in business in a recent year. complete parts (a) and (b) below. business degrees nonbusiness degrees total male 189131 634650 823781 female 169539 885329 1054868 total 358670 1519979 1878649 (a) find the probability that a randomly selected student is male, given that the student received a business degree. the probability that a randomly selected student is male, given that the student received a business degree, is nothing. (round to three decimal places as needed.) (b) find the probability that a randomly selected student received a business degree, given that the student is female. the probability that a randomly selected student received a business degree, given that the student is female, is nothing. (round to three decimal places as needed.)

The length of a rectangle plus its width is 25 cm. the area is 156 square cm. what are the length and width of the rectangle? separate the answers with a comma.

Awasher and a dryer cost $701 combined. the washer costs $51 more than the dryer. what is the cost of the dryer?