Answer:
-18.5
Step-by-step explanation:
Answer:
141.37
Step-by-step explanation:
Answer:
~
~
Step-by-step explanation:
From the question we are told that:
Price of 20TVs per week
Marginal price-demand function 
Generally the The Marginal price function is mathematically given by
Therefore the equation when the demand is 20 TVs per week at $150 per TV

Giving

Therefore the Price when the demand is 100 TVs per week

