Apitcher contains 2 3/4 pints of orange juice. after you pour 5/8 of a pint into a glass, how much is left in the pitcher

Draw a tape diagram to represent each situation.for some of the situations,you need to decide what to represent with a variable andre bakes 9 pans of brownies.he donates 7 pans to the school bake sale and keeps the rest to divide equally among his class of 30 students

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*

Math it's appreciated. (picture provided)