Giving 50 points to whoever can solve a through k I need it now!

The coordinates of a, b, and c in the diagram are a(p,4), b(6,1), and c(9,q). which equation correctly relates p and q? hint: since is perpendicular to , the slope of × the slope of = -1. a. p - q = 7 b. q - p = 7 c. -q - p = 7 d. p + q = 7

What is the perimeter of square abcd? units units 28 units 37 units

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup