The histogram shows the scores of students on their most recent history test. How many students scored 80% or better on the test?

i cant see it clearly to give you a propper answer

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.

the function makes a strait line horizontally with no x intercept but a y intercept at 9.