U.S. Bureau of the Census provided the following data concerning computer use in all U.S. elementary and secondary schools. Academic Year End Total Number of Computers Students per Computer 1985 2005 2006 630,000 84.1 13,600,000 4.0 14,165,000 3.9 Give exact answers (do not round your answers). a. Find the average rate of change from 1985 to 2005 in i. The number of computers being used. Average rate of change = ii. The number of students per computer. computers per year. Average rate of change= students per computer per year. b. Find the average rate of change from 2005 to 2006 in 1. The number of computers being used. Average rate of change = ii. The number of students per computer. Average rate of change= computers per year. students per computer per year. c. Using the annual average rate of change between 2005 and 2006, how many years after 2005 would there be a projection of 2 students per computer? years