Dle gives the increase or decrease in the number of donors to a college athletics support organization for selected years. Rate of Change of Donors to a College Athletics Support Organization. Rate of change (donors per year) Year 1985 -184 19881 812 1991 TO 1241 1994 1079 1997 2000 404 -8321 (a) Find the function of the quadratic model that gives the rate of change in number of donors, where t is the number of years since 1985, with data from 0sts 15. (Round all numerical values to three decimal places.) donors per year (b) Find the function of the model that gives the number of donors, where t is the number of years since 1965. Use the fact that in 1990, there were 10,706 donors. (Round all numerical values to three decimal places.) RO- donors (c) Estimate the number of donors in 2003, (Round your answer to the nearest integer)