The first is proportional the second is proportional and the third is not proportional
Yes.
the properties of an isosceles trapezoid are:
- the bases are parallel
- opposite sides are congruent
- the angles on either side of the bases are congruent
- the diagonals are congruent
The trapezoid has one pair of parallel sides.
Xy(9x)(5x^3y) so the greatest common factor is xy
