applications were received. Estimate the number of patent applications in 2022. Estimate the rate of change in the number of patent applications in 2022. Find the function that satises this equation. Assume that t= 0 borresponds to 2006, when approximately 457,000 patent a) N(t)= E] b) The number of patent applications in 2022 will be [:|. (Round to the nearest whole number as needed.) c) The rate of change in the number of patent applications in 2022 is about U (Round to the nearest whole number as needed.)