Somebody please help me it’s due at 11:59!

What are two numbers that have a sum of 15

Asmall book publisher knows that 26 books weigh 41 lbs. how much do 40 books weigh?

Graph a triangle (xyz) and reflect it over the line y=x to create triangle x’y’z’. describe the transformation using words. draw a line segment from point x to the reflecting line, and then draw a line segment from point x’ to the reflecting line. what do you notice about the two line segments you drew? do you think you would see the same characteristics if you drew the line segment connecting y with the reflecting line and then y’ with the reflecting line? how do you know?