35mq-6mq+9q how to solve this problem? need

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.

Use the quadratic function to predict f(x) if x equals 8. f(x) = 25x2 − 28x + 585

The side of a square is 3 and 5/2 inches