(9+10) x (-8) / 5 PLZ SHOW YOUR WORK

Answer this question! 30 points and brainliest!

V=x^4-y^4 pick three expressions that can represent the three dimensions of the prism (each in meters)

Anne plans to increase the prices of all the items in her store by 5%. to the nearest cent, how much will an artist save if the artist buys a canvas and a frame that each measure 24 by 36 inches before the price increase goes into effect?