The consumer expenditure C for a commodity is the product of its market price p and the number of units demanded n. Suppose that for a certain commodity, the consumer expenditure is given by . Factor this in order to find an expression for the number of units demanded n.

Question

Quizplus · Accepted Answer

By factoring out p from the given expression, we get:
C = pn + p^2
C = p(n + p)
n + p = C/p
n = C/p - p
Thus, the expression for the number of units demanded n is n = C/p - p. Option B is the only one that matches this expression.

The Consumer Expenditure C for a Commodity Is the Product