What is the area of this figure?​

If benito is selecting samples of five values from the table, which row will result in the greatest mean? row 1 row 2 row 3 row 4

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?