NO ONE IS PICKING MY QUESTION AND I AM RUNNING OUT OF POINTS TO USE. PLS HELP

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 function has the domain x> -11

Jennifer taking a quiz and has answered 13 questions so far. if there are 25 questions on jennifer test, how many questions does she have left to answer