Answer and Explanation:
a. The variable could be defined in the following way
Let us assume the number of chiffon dress be x
And, the number of tafetta dress be y
b. The objective function is to increased the income
So,
Maximize z = 375x + 350y
c. The constraints is
2x + 2y≤24 (sewing hours)
2x + y ≤20 (alterations hours)
x,y≥0 (non-negativity)
The same should be considered