Agarbage bag has a thickness of 0.5 mil, which is equal to 0.0005 inch. what fraction of an inch is this?

(sorry, i'm confused on how to show work, and solve this.)

Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

Find the solution of this system of equation -7x+y=-20 9x-3y=36

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?