What is 1/200 as a decimal

Two cars which are 40 miles apart start moving simultaneously in the same direction with constant speeds. if the speed of the car which is behind is 56 mph and the speed of the other car is 48 mph, how many hours will it take for the car which is behind to catch up the car ahead of it?

Three runners competed in a race data were collected at each mile mark for each runner if the runner ran at a constant pace the data would be linear

Solve the equation for y. -1 = 1/3y + 11. will give 5 stars if answered correctly!