18 divide by 2 * 3/5-2 simplify show all work

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4

What is the answer to this equation? and if you can, find a way to show your work.

Robin and john each a a 12 inch pizza about how many square inches of pizza did they eat? estimate how much pizza they ate