rachel owns a cupcake shop. last week she used 42.5 pounds of sugar making cupcakes. this week she used 26 pounds of sugar. find the percent change in the amount of sugar used. classify as a percent increase or decrease

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? ( )

If you answer right ill give brainliest, : )

Determine if the equation defines y as a function of x: 2xy = 1. yes o no