University theater sold $525 tickets for a play. tickets cost & 21 per adult and $12 per senior citizen. if total receipts were $7443 how many senior citizen tickets were sold?

David is standing on the sixth rung of a ladder while painting his house. which expressions represent a change in david’s position of 2 rungs on the ladder? choose exactly two answers that are correct. a. 6+2 b. 6-2 c. 2x6 d. 6/2