Can anybody with beginner statistics?

Which of these people has balanced their checkbook correctly? oa. gary: the balance in his check register is $500 and the balance in his bank statement is $500. b. gail: the balance in her check register is $400 and the balance in her bank statement is $500. c. gavin: the balance in his check register is $500 and the balance in his bank statement is $510.

Taking algebra two apex courses and need with these questions

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !