In figure qr = 1/3pr. find pq

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 of the fallowing best completes the sequence 12,8,5, a) 1 b) 2 c)4 d)0

What number should be added to the expression x^2+3x+ in order to create a perfect square trinomial? 3/2 3 9/4 9