Help pleaseee.

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

What are “like terms”? why can we only add like terms?

The vertices of a triangle are a(7,5), b(4,2), c(9,2). what is m