Answer:

Step-by-step explanation:
Given:
D(p): Items demanded when price is P
C(x): Production cost of x items
Required
Cost of producing when price is $5
First, we need to get the number of items demanded;
To do this, we substitute 5 for P in D(p)
This gives;

Next, we determine the production cost;
To do this, we substitute D(5) for x in C(x)
This gives;

<em>None of the listed options answer the question</em>