What number multiplied by 25 gives you 32

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 number produces a rationale number when multiplied by 1/5

For a function f(x), a) if f(7) = 22 then f^-1(22) = b) f^-1(f(c)) =