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Besides nun-negativity constraints. a transportation problem with 3 origins and 5 destinations will have haw mam:r decision variables and haw many constraints! Number of Decision variables = D Number Hf Constraints = D Supply Demand $5 450 A 300 $4 $7 700 B 2 600 Q Formulate an LP model for this transportation network above. Ty = number of units shipped from node i to node j Input the coefficients, signs and RHS values in the answer boxes below: Min Cost = I A2 + I B2 subject to: CBI + CB2 [?V TAI + CBI ? V TAI, CA2, "BI, CB2 ? V 0a} In detemiining the number of young {1'}, middle aged {M} and the elderly [E] to test with a new vaccine, a medical team concluded that the total number of other subjects should be no more than 50% of elderly subjects. Which of the following best models this constraint? one-:3 0.5(M+Y) 015:5 D.5[M+Y} 00.5EE M+Y 0E20.5{Y+M+E) bag o.5{+M+E) onwa M+Y b] Below is a randomly chosen constraint from the list above. To input this into a software {like Excel}, enter your input values for the coefficients in the answer boxes. [LEE E M + Y DE+C|M+DYD Enter a value between 1 and l {inclusive} in the answer beaten. The amount of time available to manufacture products A, B, and C is constrained as follows: 2A + 5B + 60