Suppose that a new employee starts working at $7.17 per hour and receives a 5% raise each year. After time t, in years, his hourly wage is given by the equation y = $7.17(1.05)^t. Find the amount of time after which he will be earning $10.00 per hour. After what amount of time will the employee be earning $10.00 per hour? years (Round to the nearest tenth of a year as needed.)​