Please show work:

A green algae,chlamydomonas reinhardtii, can produce hydrogen when temporarily deprived of sulfur for up to 2 days at a time. How much could a small company afford to spend now to commercialize the process if th e net value of the hydrogen produced is $250,000 per year? Assume the company wants to earn a rate of return of 12% per year and recover its investments in 9 years