Which expression is equivalent to e/f+g/h?

What is the solution to the equation below? 3/x-2+6=square root x-2 +8

Which expression is a perfect cube? a. x8 b. y24 c. m28 d. x64

If the angle bisectors of a pair of opposite angles of a quadrilateral are the opposite sides of a parallelogram formed by the two angle bisectors and two sides of the quadrilateral, is the quadrilateral always a parallelogram? explain your answer.