part c, thank you!

+ + Kalyan Singhal Corp. makes three products, and it has three machines available as resources as given in the following LP problem: Maximize contribution = 4X, +4X2 + 7% 1X1 +7X2 + 4X, 5 100 (C: hours on machine 1) 2X, + 1X2 +7X, s 110 (Cz; hours on machine 2) 8X, + 4X2 + 1X100 (Cg hours on machine 3) X, X, Xz zo a) Using a computer software for solving LP, the optimal solution achieved is: X1 - 7.95 (round your response to two decimal places). X2 = 5.95 (round your response to two decimal places). X3 = 12.59 (round your response to two decimal places). Contribution (objective value) - 143.76 (round your response to two decimal places). b) Machine 1 has 0 hours of unused time available at the optimal solution (round your response to two decimal places). Machine 2 has 0 hours of unused time available at the optimal solution (round your response to two decimal places). Machine 3 has 0 hours of unused time available at the optimal solution (round your response to two decimal places). c) An additional hour of time available for third machine, is worth dollars to the firm (round your response to two decimal places)