Just divide 30 by 6 and you get b=5
For answer a the price will be the same because it's $125 for every 10 tickets
K is the slope of the line formed by connecting the points.
Use slope formula:

where the 2 points are the end points of the line (First and last going Left to right)

Substitute into slope formula

You can check if this is correct by going back to graph and going "up 7" and "over 2" to get from one point to the next.
Answer is B.) (-3,-3) and (2,7)
answer: 180
Step-by-step explanation:
8y-12
plug in the variable
8 (24) - 12
192-12
180