Please help

QUESTION 6 You work for a not-for-profit law firm that has an annual income of $1,800,000. You and your firm are very keen to get funding from the government for a project you want to undertake, but the government has a minimum requirement for firm size; the annual income needs to be at least $2,500,000. If you expect the firm's income to grow at 9% per year, how long will it take before your firm becomes eligible? 3.8 years 3.1 years 3.6 years 4.3 years