What two numbers multiply to -36 and add to -5

What is the first step of an indirect proof of a number that is divisible by two

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

Pyotr tchaikovsky sporting goods operates on a 45% overhead based on the selling price, which results in an overhead of $65.34 on the newest version of an air hockey game set. if the air hockey game set costs pyotr tchaikovsky sports $49.32, find the selling price, the markup, and the net profit.