Consider the function as representing the value of an ounce of palladium in U.S. dollars as a function of the time t in days.t R(t) = 210 + 40t3; t = 1 Find the average rate of change of R(t) over the time intervals [t, t + h], where t is as indicated and h = 1, 0.1, and 0.01 days. (Use smaller values ofh to check your estimates. Round your answers to one decimal place.) 1 0.1 0.01 Ave. rate 140 Estimate the instantaneous rate of change of R at time t, specifying the units of measurement. R'(1) = ---Select--