An airplane on autopilot took 6 hours to travel 4,308 kilometers. What is the unit rate for kilometers per hour?

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

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?

The length of a rectangular piece of land is 92 yards more than three times its width. the perimeter is 760 yards. find its dimensions.