Maury quit his job as an accountant with We Keep Books Accurately to open his own accounting

Question:

Maury quit his job as an accountant with We Keep Books Accurately to open his own accounting firm. He earned $40,000 with the accounting firm We Keep Books Accurately. During the current year, Maury had revenues of $150,000 and total expenses of $110,000; he did not draw a salary.
a. What was Maury's accounting profit?
b. What was Maury's entrepreneurial profit?