anyone know thus multiple question. yes you , i know you've saw this , your reading now ... please help (if you can of course )

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

What is the vertex form of f(x) = x2 + 6x + 3

5(-9w) put expression in distributive property