4 1 9 -3 0 -2 -3 a- (6 pts. ) Use one convenient type 3 row or column operation to simplify the calculation then calculate det (A) b- (6 pts.) Find det(A ) using a property of determinants C- (6 pts.) Find det(A ) using a property of determinants d- (6 pts.) Find det (2A) using a property of determinants e- (6 pts.) Find det (A-1) using a property of determinantsA= [3 0 1 -1 -6406 -3203 4 0 0 0] a- (12 pts.) Use expansion by cofactors to find det (A) b- (2 pts.) If a matrix C is obtained from matrix A above by one or more row or column operation(s), what would the determinant of C be?Given the system of linear equations below, work items a, b and type the final answers in the answer box. Write legibly to show all the steps to the solution and include it in the show your work file attached to question 1. 18 x1 + 12 x2 = 13 30 x1 + 24 x2 = 23 a- (5 pts.) Write the system of equations as Ax = b and find det (A) b- (10 pts) Find the solution x = (x1. x2) using Cramer's Rule, if possible