What would be equation would be perpendicular to p(1,3), y = 2x - 1?

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

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.

Me. i can't figure out this question. give an explanation too. .