A charity organization is holding a benefit event. It receives $28,000 in donations and $225 for each ticket sold for the event. What equation models the total amount earned from the event as a function of the number of tickets sold? The same charity organization mentioned above has to pay $4,700 for the banquet hall as well as $110 per plate for each ticket sold. What equation models the total amount spent as a function of the number of tickets sold? The first part is y= 225 x+ 28000