Suppose a Firm Must at Least Meet Minimum Expected Demands $x + y \geq 140$

Multiple Choice

Suppose a firm must at least meet minimum expected demands of 60 for product x and 80 of product y.An algebraic formulation of these constraints is:

A)
$x + y \geq 140$
B)
$60 x + 80 y \geq 140$
C)
$x + y = 140$
D)
$x \geq 60 , y \geq 80$