A linear programming computer package is needed. waste of money, but having too few results in very poor customer service and the potential loss of customers. estimates are given in the following table. requirements. (Let Xj= the number of call-center employees who start work on day i where i=1= Monday, j=2= Tuesday, etc). MinX1+X2+X3+X4+X5+X6+X7 s.t. Monday X1+X4+X5+X6+X780 Tuesday X1+X2+X5+X6+X750 Wednesday X1+X2+X3+X6+X745 Thursday X1+X2+X3+X4+X770 Friday X1+X2+X3+X4+X5100 Saturday X2+X3+X4+X5+X690 Sunday X3+X4+X5+X6+X750 x1,x2,x3,x4,x5,x6,x70 Find the optimal solution. (x1,x2,x3,x4,x5,x6,x7)=(20,15,0,45,5,5,0 Give the number of call-center employees that exceed the minimum required. (M,Tu,W,Th,F,Sa,Su)=()