Company B is analyzing its mixed costs. During January, the total labor hours are 23,000 and total costs this month are $56,000. In February, the total labor hours are 18,000 and the total costs are $45,000. Next month in March they are expecting for $25,000 direct labor hours. What should they expect their total costs to be in April?

1. $60,000
2. $50,500
3. $5,400
4. $60,400