My dear friend answer this:

"the area of a rectangle is 1,176 square meters. the width of the rectangle is 21 meters. what is the length of the rectangle?

this doesn't make sense lol

y = 2x

step-by-step explanation:

if you divide each number in the sequence, you'll see that they all have a multiple factor of 2. each number in the series, and any other numbers which may continue, will be multiplied by 2. therefore, y is the next number in the sequence, and x is the current one, so, our formula will be y = 2x.