-8z^{-2} Write the expression using only positive exponents. Assume no denominator equals zero.

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

Find the missing dimension! need asap! tiny square is a =3025 in ²

Maren is buying carpet for her rectangular living room. the room is 4.8 yards wide and 5.2 yards long. how much carpet does she need to buy? enter your answer as a decimal in the box. yd2