The following table gives the percent of new students who are registering for another mathematics course after taking m110. year 1993 1997 2001 2005 2009 2013 percent taking another math course 36 45 49 52 57 58 (a) find the best fitting linear model (round coefficients to the nearest hundredth). (b) what is the significance of the slope? give a full explanation. (c) estimate the percentage for the year 2018. (d) estimate the year when the percentage was 70.