Trigonometry find X and Y​

You are remodeling your kitchen. you’ve contacted two tiling companies who gladly told you how long it took their workers to tile of a similar size jim completed half the floor in 8 hours. pete completed half of the other floor in 7 hours. if pete can lay 20 more tiles per hour than jim, at what rate can jim lay tiles

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

How do the definitions, properties, and postulates you've learned about line segments, parallel lines, and angles to define the shapes of polygons