You kinda answered your own question, if 64 adult and 132 student tickets were sold that's how many tickets they sold of the adult and student tickets. if you are trying to find the dollar amount of the tickets they sold, Adult tickets are $512 and student tickets are $528. Multiply 64 and 8 to get 512, and 132 times 4 to get 528 add them together they equal 1040.