150.
You can read the uppermost point on the graph which is pretty much that point.
An inequality that represents this equation would be:
x ≤ 475
They cant spend more than $475, so they can spend less than or $475 as represented in the question.
(3x19.95+23.5+124.95)1.05=
59.85+23.5+124.95 =208.3
208.3×1.05=218.715
