Maddy purchased an old scooter for $ 12000 and spent $ 2850 on its overhauling. Then, he sold it to his friend Sam for $ 13860. What is his percentage profit or loss?

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?

Omar is going on a road trip! the car rental company offers him two types of cars. each car has a fixed price, but he also needs to consider the cost of fuel. the first car costs $90 to rent, and because of its fuel consumption rate, there's an additional cost of s0.50 per kilometer driven.

A. what does the point (4, 122) represent? b. what is the unit rate? c. what is the cost of buying 10 tickets?