May I please receive help?

What are the soultion(s) to the quadratic equation 40- x^2=0

A, b, c, and d have the coordinates (-8, 1), (-2, 4), (-3, -1), and (-6, 5), respectively. which sentence about the points is true? a. a, b, c, and d lie on the same line. b. and are perpendicular lines. c. and are parallel lines. d. and are intersecting lines but are not perpendicular. e. and are parallel lines.

What is the area of mnp? 40 m2 60 m2 68 m2 127.5 m2