Which of the following functions best describes this graph?​

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. how many hours after the truck's departure will the two meet?