The measure of an exterior angle of a regular polygon is given. Find the measure of an interior angle, and find the number of sides.
40. 72
41. 36
42. 18
43. 30

How do i make someone brainliest? (if you answer me, i might be able to make you brainliest! )

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?

Awater truck is filling a swimming pool. the equation that represents this relationship is y=19.75x where y is the number of gallons of water in the pool and x is the number of minutes the truck has been filling the pool.