How many day would it take for a machine costing 9,000 pay for itself if it produced 3.00 every 2 hours

Which of these tables represents a non-linear function?

Find two numbers if their sum is 91 and the ratio is 6: 7?

Will give brainliest for correct answer 8. use the distance time graph to answer these questions: a. what does the graph tell us about the velocity of the car? b. what is the average velocity of the car? (show work) c. is the velocity reflected in the graph positive or negative?d. is there any point on the graph where the car is not moving? how do we know?