Simplify: (4x2 − 8xy + 2y2) − (9x2 − 4xy − 7y2) (5 points) −5x2 + 4xy + 9y2 −5x2 − 4xy + 9y2 −5x2 + 12xy + 4y2 −5x2 − 4xy − 5y2

Me! #1 write an equation for the interior angles of this triangle that uses the triangle sum theorem. #2 what is the value of x? #3 what is the measure of #4 classify the triangle above as acute, obtuse, or right. state your reason in a complete sentence.

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2

60 musicians applied for a job at a music school. 14 of the musicians play both guitar and drums. what is the probability that the applicant who gets the job plays drums or guitar?