Answer:
the question made no sense.
Step-by-step explanation:
Find the slope(s) twice, first the slope of the line connecting (2,4) and (4,8) and then the slope of the line connecting (2,4) and (8,12). If you get different slopes, then it'd be safe for you to conclude that the points do not lie on the same line.
Just solve until the answers are the same
25 times x plus 30 for John
15 times x plus 50 for Mary
Answer:

Step-by-step explanation:
bisects
and
.


Solve for m.
Subtract 3m from both sides.

Divide both sides by 3.

Calculate
.


Put m = 7.


