A product is introduced into the market Suppose a product s sales quantity per month q t is a function of time t in months is given by q t 5000t 170t And suppose the price in dollars of that product p t is also a function of time t in months and is given by p t 170 t A Find R t the rate of change of revenue as a function of time t 680 150002 57800t 850000F expanding and collected not required B What is the the rate of change of revenue with respect to time 5 months after the introduction 271000 C Interpret your answer in part B include the units of the number in part B