I know this is not technically answering your question but there is this app called photomath that I'm pretty sure could help u answer this question. hope if u try out the app it works for you.....
(0 , 3) is the ordered pair
Hi there! To find the total cost after the markup, all you have to do is multiply by 105% (1.05), because you’re incorporating the cost of jeans bought plus the markup. 50 * 1.05 is 52.5. The jeans costed $52.50 after the markup.