3. From Assignment 5's linear programming question. Solve the linear program model using solver. The Assignment 5 question is copied below:

A 24-hour pharmacy/drug store needs to plan for staffing but wants to cut costs to a minimum. The employees work 8-hour shifts. The pharmacy/drug store needs 12 staff between 8 am and noon, 10 staff between noon and 4 pm, 14 staff between 4 pm and 8 pm, 10 staff between 8 pm and 12 am, and only 6 staff between 12 am and 8 am. How should the drug store employees be scheduled? (Assumption: Schedule of staff is only on 4-hour intervals of midnight, 4am, 8am, noon, 4pm, and 8pm.)

Linear Program to use for your solver solution:

Decision variables represent different 8-hours shifts starting at 4am (x₆), 8am (x₁), noon(x₂), 4pm(x₃), 8pm(x₄), and midnight (x₅)

Min Z = x₁ + x₂ + x₃ + x₄+ x₅+ x₆

Subject to (constraints)

x₁ + x₆ >= 12

x₁ + x₄ >= 10

X₄ + x₂ >= 14

X₂ + x₅ >= 10

x₅ + x₃ >= 6

x₃ + x₆ >= 6

All variables >= 0