Use an algebraic equation to solve the problem. the sides of a triangle are in the ratio 3: 4: 5. what is the length of each side if the preimeter of the triangle is 90 cm

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?