Sylvia is organizing a small concert as a charity event at her school. She has done a little research and found the expression -10x + 180 represents the number of tickets that will sell at an event given that X represents the price of the ticket. Explain why the income of the event can be represented by the expression -10x^(squared) + 180x. If all the expenses add up to $150, explain why the expression -10x^ +180x-150 represents the profit. Please help. Thank you in advance and I can't make a number squares on this device so ^ is the symbol I used for squares