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).

Need solving this second acceleration problem.

Find the y-intercept and x-intercept for the equation 5x-3y=60 what is the y-intercept

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?