420 miles in 7 hrs? needs to be put in a ratio

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.

Solve the inequality and graph 6j - 7 < 5

Having a hard time understanding this question (see attachment).