HELPPP Determine the EXACT values of A and B. [(10x^3 y^5)(4x^2 y^-2) all divided by 20x^-4 y^B]= y^12 divided by 8x^27 ??? PLZZ HELP

]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