Ms. magers makes an announcement that 3 out of every 7 sixth graders have an overdue library book. david says that means that 21 sixth graders have overdue library books. how many sixth graders do not have an overdue library book? show your work.

Which of the following expressions are equivalent ?

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.)

Bring the fraction a/a-4 to a denominator of 16-a^2