The Juniors and Seniors reported their scores on a standardized math test. The teacher displayed their scores on dot plots. What conclusion can you draw using the means?

The mean score for the Seniors was 28.5 points higher than the mean score for the Juniors.
The mean score for the Juniors was 22.5 points lower than the mean score for the Seniors.
The mean score for the Juniors was significantly higher than the mean score for the Seniors.
The mean scores are all greater than the median scores.

what is the question here

step-by-step explanation:

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10

the answer is (-8,-5)

step-by-step explanation:

the endpoint to midpoint is half the length. the length is (-2,-1) so when you are at the midpoint just add it to it to find your answer -6+(-2)= -8 and -4+(-1)=-5 so (-8,-5)