What is the value of 6/12 - 5/12 + 4/12 - 3/12 + 2/12 -1/12

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?

Afootball is throw by a quarterback to a receiver

David leaves his house to go to school. he walks 200 meters west and 300 meters north. how far is david from his original starting point?