Agrocery store stocks shelves with 80 cartons of strawberries before the store opens. for the first 3 hours the store is open, the store sells 10 cartons per hour. over the next 2 hours, no cartons of strawberries are sold. the store then restocks 10 cartons each hour for the next 2 hours. in the final hour that the store is open, 20 cartons are sold. graph the function.

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?