The diagonals of parallelogram ABCD intersect at point E. To prove that BAE and DCE are congruent, all of the following could be used, except for which? A.
The sum of the measures of the interior angles of ABCD is 360°.

Jackie purchased 3 bottles of water and 2 cups of coffee for a family for $7.35. brian bought 4 bottles of water and 1 cup of coffee for his family for $7.15. how much does each bottle of water cost? how much does each cup of coffee cost? i need this done

The ksp expression for the system pbcl2(s) pb+2(aq) + 2 cl-(aq) is: [pbc12][pb+2][2cl-] [pb+2][cl-]2 [pb+2][2cl-]2 [pbcl2][pb+2][cl-]2 [pb+2][2cl-]2[pbcl2]

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?