Can someone be my math teacher ? pls message ​

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

D(5, 7). e(4,3), and f(8, 2) form the vertices of a triangle. what is mzdef? oa. 30° ob. 45° oc. 60° od 90°

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.