David went to a lot of concerts over the past year with different groups of friends. He went to a concert that cost $32 per ticket with one friend, a concert that cost $18 per ticket with two friends, and a concert that cost $54 by himself. How much money was spent by David and his friends on tickets?

Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling

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?

Let x = a + bi and y = c + di and z = f + gi. which statements are true?