An angle measures 19.4° less than the measure of its supplementary angle. What is the measure of each angle

What is the greater volume 72 quarts or 23 gallons

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

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?