I need help with all of them

Find the value of x for which abcd must be a parallelogram -9-6x x-30

If 25% of y is 30, what is 60% of y?

]supplementary angles are two angles that add up to . • complementary angles are two angles that add up to degrees. • adjacent angles share a and a • congruent angles have the measure. • an triangle has one angle that is greater than 90 degrees. • a triangle with angles 45°, 45°, and 90° would be a triangle