HELP ME PLEASE [IREADY DIAGNOSTIC]

[tell me if it is a, b, or c and why]

What is the least common multiple of 6 and 17?

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.

Find the solution(s) to x^2-14+49=0