What is the first step needed to solve (3/4)x 1 3+-18 ?

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.

Part a : solve -vp + 40 < 65 for v part b : solve 7w - 3r = 15 for r show your work .

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0