What is 2 less than - 4x as a expression

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

Which ordered pair is a solution to the system of linear equations? 2x + 3y= 6 –3x + 5y = 10

The formula for the lateral area of a right cone is la = rs, where r is the radius of the base and s is the slant height of the cone.which are equivalent equations?