HELP ASAP PLEASE! This is the only question I am having troubles with! Thank you !

-Kelly was selling t-shirts at a local sports game. The shirts cost $9 for a short-sleeved and $15 for a long sleeved shirt. At the game she made $270. Write an equation that represents the amount in sales during that game. Lex x be short-sleeved and y be long-sleeved shirts.

Then graph the equation using only the intercepts.

Then state 3 different combinations of shirts that she could have sold (include the

two intercepts as two of the answers).