please explain every step

Homework: 7.5 Maximization Applications Score: 0 of 1 pt 4 of 4 (1 complete) X 7.5.19-LS Use a graphing calculator or a computer program for the simplex method to solve this linear programming problem. 1 x X2 X3 X4 si 0 0.375 .625 1 0 .75 .5 .375 0 1 .25 125 0 0 | - 100 - 75 - 70 -60 0 52 0 1 0 0 53 0 530 0 630 1 290 0 0 The optimal solution X1 = ,x2 =, x3 =D, and X4 = produces the maximum value O. (Do not round until the final answer. Then round to the nearest integer as needed.) Homework: 7.5 Maximization Applications Score: 0 of 1 pt 4 of 4 (1 complete) X 7.5.19-LS Use a graphing calculator or a computer program for the simplex method to solve this linear programming problem. 1 x X2 X3 X4 si 0 0.375 .625 1 0 .75 .5 .375 0 1 .25 125 0 0 | - 100 - 75 - 70 -60 0 52 0 1 0 0 53 0 530 0 630 1 290 0 0 The optimal solution X1 = ,x2 =, x3 =D, and X4 = produces the maximum value O. (Do not round until the final answer. Then round to the nearest integer as needed.)