I need help with this question its urgent thanks please choose all that apply

H 2 Let A = 3 7 9 . Which of the following -1 -4 -7 statement(s) is true? A is invertible. O A is not invertible. O A has a pivot in very row. O A has a pivot in very column. O - > The equation A a = b has a unique solution for every b in R 3. A is row equivalent to 13. A is invertible. O A is invertible. O The equation A x = b is inconsistent for some b in R3