Respuesta :
Unfortunately, there are no given choices. However, I could provide the possible inequalities from the given problem. Converting the given to inequalities:
3.2x + 0.8y < 50
x + y = maximum
There is no other limiting equation (i.e. the total cost of the books) such that the, if you wanted to maximize x, results to minimum y and vice versa.
same as the first because I can maximize one 1⃣️ or other but at the end can balance with the pounds