Rexel university, conebe o been 4. solving systems of equations using gauss-elimination (also called row reduct solving systems use gauss-jordan reduction to transform you can the augmented matrix of each system in problems 24-36 to work in ma rref use it to discuss the solutions of the system (i. e., nothe rref con solutions, a unique solution, or infinitely many solutions) 28. 29. x-+ 4x2-55)=0 x- y-2z=1 2x +3y +z 2 5x + 4y+2z = 4 34. x+2y +z=2 35, x+2y +z= 2 2x- y+2z = 3y + z=-2

Joel wants to buy a new tablet computer fram a store having a 20% off sale on all tablets. the tablet he wants has an original cost of $190. he also wants to make sure he has enough money to pay the 5% sales tax. part one joel uses the incorect expression 0.95(190)(0.8) to calculate that the tablet will cost him a total of $144.40. describe his error and write the correct expression part two how much will joel pay for the tablet show your work if you answer this question correctly you will receive a prize of 99 points good luck