Is it possible to have the absolute value of a = -a for a nonzero real number a?

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

The pyramid shown has a square base that is 24 centimeters on each side. the slant height is 16 centimeters. what is the lateral surface area?

Solve each quadratic equation by factoring and using the zero product property. [tex]x^2+6x+8=0[/tex]