Which radiation number equals 0.4 with bar over 4? 2/10 2/9 4/10 4/9?

You’re repairing a large rectangular aquarium. the final step is to cover the glass with a protective film. the front and back of the aquarium measure 4 meters by 2 meters, and the sides of the aquarium measure 3 meters by 2 meters. how many square meters of protective film do you need? ( )

The wheels of a bicycle have a diameter of 70cm. how many meters will the bicycle travel if each wheel makes 50 revolutions

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.