Answer:
Average total cost= $46
Marginal revenue= $33
Explanation:
In this instance the monopolist's total cost is the revenue from sale of one unit less the economic profits per unit
Economic profit per unit= 2,700/900
Economic profit per unit= $3
Average total cost= (Price per unit) - (Economic profit per unit)
Average total cost= 49 - 3= $46
For this instance marginal revenue is equal to marginal cost.
Marginal revenue= Marginal cost= $39