I need an explanation for this Mathematics question to help me study.

Colsen Communications is trying to estimate the first-year cash flow (at Year 1) for a proposed project. The financial staff has collected the following information on the project:

Sales revenues $20 million

Operating costs (excluding depreciation) 14 million

Depreciation 4 million

Interest expense 4 million

The company has a 40% tax rate, and its WACC is 13%.

Write out your answers completely. For example, 13 million should be entered as 13,000,000.

What is the project’s cash flow for the first year (t = 1)? Round your answer to the nearest dollar.