0 (a) Develop a minimum-cost schedule for part-time employees. (Let xj= the number of part-time employees who start work beginning at hour i where i=1=11:00 a.m., i=2= Noon, etc). Find the optimal solution. (x1,x2,x3,x4,x5,x6,x7,x8)=( (b) What is the total payroll (in \$) for the part-time employees? $ How many part-time shifts are needed? shifts Use the surplus variables to comment on the desirability of scheduling at least some of the part-time employees for 3-hour shifts. This answer has not been graded yet. employees who start work beginning at hour i where i=111:00a.m.,j=2 Noon, etc ). Min s.t. 11:00 a.m. Noon 1:00p.m. 2:00 p.m. 3:00 p.m. 4:00 p.m. 5:00 p.m. 6:00 p.m. 7:00 p.m. 8:00 p.m. 9;00p,m. x1,x2,x3,x4,x5,x6,x7,x8,y1,y2,y3,y4,y5,y6y7,y9,y90 Find the optimal solution. (x1,x2,x3,x4,x5,x6,x7,x8,y1,y2,y3,y4,y5,y6,y7,y9,y9)=( How many part-time shifts are needed, and what is the cost savings (in \$) compared to the previous schedule? part-time shifts needed Dost savings \$