can you please solve exercise 3-40 in fundamentals of cost managerial 5th edition book

Hammerhead Charters runs fishing trips out of the local port. Hammerhead charges $50 per trip for a half-day trip. Variable costs for Hammerhead total $20 per trip and the fixed costs are $6,000 per month. Hammerhead is subject to an income tax rate of 25 percent.

Required

How many trips must Hammerhead sell to break even?

How many trips must Hammerhead sell to earn a monthly operating profit of $9,000 after taxes?