You are working as a lab technician collecting samples for a test that are very sensitive to warm temperatures. A scientist comments that his freezer used to store the samples should be 13 degrees colder. If the freezer's display reads "-50°C", what should you adjust the temperature to be?

Aparallelogram has two side lengths of 5 units. three of its sides have equations y = 0, y = 2, y = 2x. find the equation of the fourth side.

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? ( )

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?