The answer: Dustin spent $66
$52+$49=$101
$101-$35=$66
Do 13,500 times .012. Take that answer and multiply it by 10. From that answer, subtract it from 13,500. That would be your final answer.
(3,2) is the center and the radius is 2. You can see this by taking where the dot is in the graph (in this case (3,2)) that is your middle, while the radius is one half of the circle, basically how many points are between the circle and the dot. Hope this helps!
Since the diameter of the cylinder is 10, its radius is half that, or 5, thus