90 Points!! PLEASE MAKE SURE THE INORMATION IS CORRECT THAT YOU GIVE ME!

The math club sold $808 worth of tickets for their spaghetti dinner. Adult tickets cost $12 each and children's tickets cost $8 each. If they sold 75 tickets, how many adult tickets and how many children's tickets were sold?

Write a system of equations which represents this problem.
Use substitution to solve.
Clearly, state the answer to the question.