Pls help me with this — show work pls

What is the logarithmic function modeled by the following table? x f(x) 9 2 27 3 81 4

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.

Place the following steps in order to complete the square and solve the quadratic equation,