uiz 3 1) Solve the following system by Gaussian elimination: a) [ 3 6 4 12 | 8 24 b) [ 6 2 | 4 ] 3 4 17 2) You invested $25,000 into two accounts: one that has simple 3% interest, the other with 2% interest. If your total interest payment after one year was $600, how much was in each account after the year passed? For the following problem, graph the system of inequalities. Show (by shading in) the feasible region. 3) y - 2x + 4 , y - 3x + 2 4) 2x + y < 1 , y > - 1 5) 3x + 2y 6 , x + 2y 2