CHOIR

Each student in the choir must earn $2500 to attend a performance in Ireland this summer. To earn the funds they are selling candy bars and t-shirts. For each candy bar sold, the singer earns $1 credit, and for each t-shirt the singer earn $5.75. Which equation represents the number of candy bars (X) and t-shirts (y) that must be sold by each singer to ensure that he/she can attend the performance ?