The relationship between revenue generated and the number of full-time employees for a particular company can be approximated by 20n + 32R = 3000, where R is revenue in millions of dollars and n is the number of employees. In 2015, the rate of change of revenue with respect to time was $841 million per year, find the rate of change of the number of employees with respect to time. Differentiate both sides of the equation with respect to time. OR