I need help with this question its urgent thanks

1 3 2 Let A = 3 h . For what values of h and k, A is 2 7 k invertible? O h and k can be any real numbers. Oh # 2, k can be any real number. Oh = 2, k=4 O h # 2 and k * 4 O h = 2 and k # 4 h can be any real number and k # 4