22. Assuming a company has net income, which of the following statements is TRUE regarding the contribution margin per unit?

a.	It will decrease as the number of units sold increases.
b.	It will decrease as the number of units sold decreases.
c.	It indicates the amount that net income will increase with the sale of each additional unit.
d.	It indicates the amount that variable costs will decrease with the sale of each additional unit.

46 What combination of x and y is a feasible solution that maximizes the value of the objective function (and satisfies all constraints)?

Max ($4x + $7y)

S.T. 2x + 4y < 12

5x + 2y < 30

X, Y > 0

A. x = 0; y = 3

B. x = 0; y = 5

C. x = 5; y = 0

D. x = 6; y = 0

E. x = 4; y = 1

Except for violating the non-negativity constraint, a solution that satisfies all the other constraints of a linear programming problem is called

A. feasible

B. infeasible

C. semi-feasible

D. optimal