HElp PLEAse. OR ELSE

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.

Which of the following is not a subset of {1,2,3}?

Find the zeros of each function. f(x) = 6x^2 - 7x - 20