Answer: a) 
 , b)
, b) 
 c) $5761.36.
 c) $5761.36.
Explanation:
Since we have given that 
Unit price is expressed as 

Let x be the number of units of a thousands.
So, Revenue function is given by

.(b) Find the marginal revenue function R'..
Marginal revenue function becomes,

(c) Compute R'(2).

Hence, a) 
 , b)
, b) 
 c) $5761.36.
 c) $5761.36.