Which is an equation of a line that passes through the point (-4,1) and is perpendicular to the line whose equation is y = 2x + 4

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

What is the measure of ac? 5 units 13 units 26 units 39 units 3x- 2b 6x + 9

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?