At a music festival, t-shirts are sold for $15 and sweatshirts are sold for $20. the festival organizers pay x dollars for each t-shirt and y dollars for each sweatshirt. the festival sells 53 t-shirts and 39 sweatshirts.
write and simplify an expression that represents the profit.

Item 1 which question could the expression 1000n answer? let n = the number of gallons of gas used. how many miles per gallon did the car get driving 1000 miles? let n = the number of grams of food needed for each dog. how many grams of food are needed to feed 1000 dogs? let n = the number of people at the show. how many empty seats were there at the show if there are 1000 seats at the theater? let n = the number of seats at the theater. how many empty seats will there by if 1000 people come to the show?