The scale of a map is 0.5 inches : 10km. Find the actual distance corresponding to the map distance of 10 inches

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?

There were 25 students who answered to a survey about sports. four-fifths of them like football. how many students like football?

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?