The order is top left is A, Top right is B, bottom left is C and bottom right is D

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

How can you construct perpendicular lines and prove theorems about perpendicular lines

Solve this riddle: i am an odd number. i an less than 100. the some of my digit is 12. i am a multiple of 15. what number am i?