An action movie earned $89,200,000. an animated movie earned $92,400,000. round each money amount to the nearest hundred million.
about how much money did the two movies earn altogether?

Which of the following expressions is equal to 2x^2+8

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

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?