Shelia rode her bike daily to get ready for a bike race. the following list shows the number of miles she rode each day of the week. 30,27,22,32,35,18,39 how many miles did shelia average per week?

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.