Need help ! no links and no fake answer

Which statement is not always true for a parallelogram? (a) opposite sides are congruent. (b) diagonals bisect each other. (c) it has 4 congruent angles. (d) consecutive angles are supplementary.

Rewrite the following without an exponent. (5/8)-1

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?