If 3x−y=12, what is the value of 8^x/2^y ? A) 2^12
B) 4^4
C) 8^2
D) The value cannot be determined from the information given.

Answer this question only if you know the 30 points and

]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

Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.