ABC is an equilateral triangle, solve y

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.

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

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m