In Economics, Total Quantity Sold Is the Product of the Price

Multiple Choice

In economics, total quantity sold is the product of the price and the demand. Find the total quantity, Q. $$\text { Price } = 4 x + 12 \quad \text { Demand } = \frac { 600 } { x ^ { 2 } + 3 x }$$ Assume there are no zero denominators.

A) $Q = \frac { 600 } { x }$
B) $Q = \frac { x } { 2,400 }$
C) $Q = \frac { 2,400 } { x }$
D) $Q = \frac { x + 3 } { 2,400 }$
E) $Q = \frac { 2,400 } { x + 4 }$