Prove that when x>1, a triangle with the side length a=x^2-1, b=2x, and c=x^2+1 is a right triangle. Use the Pythagorean theorem and the given side links to create an equation use the equation to show what does triangle shows the rule describing right triangles. Explain your steps.

Ashley recently opened a store that sells only natural ingredients. she wants to advertise her products by distributing bags of samples in her neighborhood. it takes one person 22 minutes to prepare one bag. how many hours will it take to prepare 900900 bags of samples if ashley and 55 of her friends do the work?