Please Help Solve This

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.

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

Measure of angles 31 (x+4) (3x+9) me