How to solve negative exponents with a negative base?

The measures of the legs of a right triangle are 15m and 20m . what is the length of the hypotenuse

5. which description does not guarantee that a quadrilateral is a squar ajo is a parallelogram with perpendicular diagonals 0% has all sides congruent and all angles congruent o has all right angles and has all sides congruent 10% is both a rectangle and a rhombus 30%

This graph shows which inequality? a ≤ –3 a > –3 a ≥ –3 a < –3