How might we know whether x is a positive number, negative number, or zero, without solving the equation?

Rectangle pqrs has length a and width 4b. the x-axis bisects ps and qr what are the coordinates of the vertices

Is a positive integer raised to a negative power always positive

Eis the midpoint of line segment ac and bd also line segment ed is congruent to ec prove that line segment ae is congruent to line segment be