What is the interquartile range? A. 4
B. 10
C. 6
D. 12
(No files pls)

Just tell me how to set up the equation.

Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?