Sixteen students in a drama club want to attend a play. The ticket is 35$ for each student, and the transportation and meals for everyone will cost 960$
Yo pay for the trip, the students design sweatshirts to sell for a profit for 19$ per sweatshirt. If each student sells the same number of sweatshirts, how many sweatshirts must each student sell so that there will be enough money to pay for the entire cost of the trip ?