Which of the following is true about the data set {3,5,5,7,9}?

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

The diagonals of a quadrilaretral intersect at (-1,4). one of the sides of the quadrilateral is bounded by (2,7) and (-3,5) determine the coordinates of the other side in order for the quadrilaretral to be a square.

If you could answer these your a life saver