help me please im stuck

Question

Brad is a high school teacher who wants to save for a trip to Hawaii in the summer which would cost $4000.00. If his annual salary is $60,000.00 and his annual expenses are $50,400.00, how many months will he need to save for in order to go on his trip?

Answer 1

His excess (disposable income) is 60,000 - 50,400 which is  $9,600 per year.

Dividing this by 12, that makes it POSSIBLE to save $800 per month.

In five months, the amount saved would get to $4,000.