What is the reverse of subtract 941

Toyland is having a sale. all items are 20% off. how much will you save on an item that usually sells for 95$ explain your

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? ( )

Two lines parallel to a third line are parallel to each other. always sometimes or never