Lines A and B are parallel and cut by transversal CD. Which choice describes the angles represented by 2x and 3x − 20?
A) vertical angles
B) supplementary angles
C) corresponding angles
D) alternate interior angles

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Math each whole number with a rational,exponential expression

Merrida uses a pattern in the multiplication table below to find ratios that are equivalent to 7: 9. if merrida multiplies the first term, 7, by a factor of 6, what should she do to find the other term for the equivalent ratio? multiply 9 by 1. multiply 9 by 6. multiply 9 by 7. multiply 9 by 9.