Literally just plug it in
6(7) + 5(-4) - 42 = 0
42 -20 -42 = 0
-20 = 0
Not a solution.
Answer:
option C

Step-by-step explanation:
The point slope equation of a line is given by

Where m is the slope and (x1,y1) is the point on the point

We need to write the equation in y=mx+b form
multiply -2/3 inside the parenthesis

Subtract 7 from both sides

Answer:
26.8 pi or approx. 84.19
Step-by-step explanation:
Circumference can be found by multiplying the diameter by pi. The diameter is twice the radius, which in this case is 13.4, so it's 13.4 * 2 = 26.8.
Multiply by pi, and you've got your answer!