please answer the questions.

The table below shows the price, quantity, and total cost for a monopolist. (8 Marks) I Q P TR MR TC MC 0 $10 4 1 $9 8 2 $8 15 3 $7 24 4 $6 37 a) Calculate total revenue (TR), marginal revenue (MR), and marginal cost (MC) in the above table. (3 Marks) b) What is the monopolist's prot maximizing price and output? (2 Marks) c) Given the data from the completed table, graph out the demand curve, MR, and MC for the monopolist; be sure to include the prot maximizing price and output on your graph