If avery’s account had $857.64 before any deposits or withdrawals, what was her final balance

What is the common difference in the following arithmetic sequence 7,3,-1,-5

You got a job selling magazines door-to-door. you are paid $100 per day plus $1.50 for each magazine you sell. which recursive formula models this situation?

Which of these numbers of simulations of an event would be most likely to produce results that are closest to those predicted by probability theory? 15, 20, 5, 10