What is the x-coordinate of (-3, 9) after a 90° clockwise rotation about the point (2, -4) and dilated by a scale factor of 0.2?

Find the y-intercept and x-intercept for the equation 5x-3y=60 what is the y-intercept

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?

In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?