Evaluate the expression 7x, if x= 11

If you have 12 feet of string and you cut it into equal length of 5 inches each how much string will be left

Ineed here’s a picture of the question

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?