What are the values of a and b?

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 points is collinear with (-2,1) and (0,3)

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers