Answer:
from the picture the answer is D.
Step-by-step explanation:

to find x subtract 18x from 4x which will give you -14x=-36
divide both sides by -14
Answer:
Because she is concluding that her class is an accurate representation of the overall school. The sample size in this case is too small and should increase her sample size(the amount of people surveyed) in order to get a better result.
Answer:
15
Step-by-step explanation:
please the answer is 15