Use the angle-angle similarity postulate to determine which pair of triangles is not similar

Asequence of numbers begins with 12 and progresses geometrically. each number is the previous number divided by 2. which value can be used as the common ratio in an explicit formula that represents the sequence? 1/2 2 6 12

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2

The slope of the line whose equation is 3y = 2x - 3 is 2 2/3 3/2