Acaterer makes 3 extra sandwiches for every 20 sandwiches a customer orders. what is the ratio of ordered sandwiches to extra sandwiches

What is the smallest integer n such that n\sqrt{2} is greater than 20

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? ( )

Find the cosine function that is represented in the graph.