The California Board of Education wants to know how 5th grade students are doing in math this year. They get a list of all 5th graders in the state of California and look at the overall math grades of every 10th student on the list. Then they add the scores and divide to
get an average. What kind of sampling is this?

I think random sample

Step-by-step explanation:

C) y = 2x + 3

Step-by-step explanation: You have to substitute 1 for x & 5 for y & 2 for m, but 1st do the point slope form ---> slope intercept form.

y -Y1 = m(x - X1)

y - 5 = 2(x - 1)

y - 5 = 2x - 2

  +5          + 5

y = 2x + 3 --- IN SLOPE INTERCEPT FORM

Hope this helps you!!! :)