What is the sum of (2a - 3b) and (5b - a)

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. what distance from city a is the point where the truck and the car will meet?

Graph y = -|x| + 2. click on the graph until the correct one appears.

For a function f(x), a) if f(7) = 22 then f^-1(22) = b) f^-1(f(c)) =