For the Beauty Grow Fertilizer production problem (problem 8). a. Use an appropriate sum of the decision variables to write model shells for the total number of: (i) pounds of Compound 1 used; (ii)...

For the Beauty Grow Fertilizer production problem (problem 8).

a. Use an appropriate sum of the decision variables to write model shells for the total number of: (i) pounds of Compound 1 used; (ii) pounds of Compound 2 used, and (iii) pounds of Compound 3 used.

b. Write model shells for: (i) bags of Beauty Green produced; and (ii) bags of Beauty Turf produced.

c. Using your answers to parts (a) and (b), write a model shell expressing the constraints on the amount of each compound used and the number of bags of each fertilizer produced.

d. Write a model shell for the profit function.