Six times a number is 45 greater than the product of the number and -3. find the number. (whoever can answer this i will give them the brainliest later)

What is always true when two whole numbers are subtracted?

In the diagram, gef and hef are congruent. what is the value of x

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?