Which expressions are equivalent to 2(x + 3/2) - 4(x - 9) 1) 37x 2) -2x + 39 3) 2x + 39 4) 2x + 3 - 4x + 36

If y varies directly as x2 and y=6 when x=6, find the constant of variation.

[15 points]find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible

Are the corresponding angles congruent? explain why or why not.