Easy, 6:30-40. Take away 40, 5:50.
Let the original price of the book be x. If, after a 33% markup on the initial price, the student had to pay 115.00 for it, then we can calculate x as:
(1 + 33%)(x) = 115
1.33x = 115
x = 115/1.33 = 86.47
This means that the bookstore paid $86.47 for the book.
The answer would be y=42x
It's going to be graphed at coordinate (0,-3)
