Dvd players are going out of fashion in the modern era. if 400,000 dvd players were sold this year and sales are declining at a rate of 31% per year, how many will be sold 3 years from now

Draw the line of reflection that reflects △abc onto triangle δ a'b'c'

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? ( )

Eileen purchased 3.4 pounds of apples at the total cost of $19.72. if she purchases 6.2 pounds of apples at this store, how much would it cost?