Answer:
m= -13/14
Step-by-step explanation:
use y=mx+b formula!
The samples he chose may not be a representative sample because the number of students per foreign language class may not be the same. One class may have a very large number of students while another may have only a few. Taking equal number of students per class is not a representative sample.<span />
Where the rest of the question?
The answer is 10 because 9x5=45 then you do 45-15=30 then you divide by 3 which is 10.
Your welcome
To get the number at the back, you would need to multiply the number in front by 3 and minus 1.
The answer would be A