Respuesta :

Answer: $140

Explanation:

Based on the information given in the question, the marginal cost of producing the 50th acre of sod will be:

TC = 0.2Q² + 120Q + 5000

The marginal cost will be:

= dTC / dQ

= 0.4Q + 120

Then we put the value of Q = 50 into the equation and this will be:

MC = 0.4Q + 120

MC = (0.4 x 50) + 120

MC = 20 + 120

MC = 140