aive each problem. 18) The water level, measured in feet about mean sea level, of Lake Lanier in Georgia, USA, during 2012 can be modeled by the function L(t) = 0.014413 - 0.41772 + 2.703t + 1060.1 where t is measured in months since January 1, 2012. Estimate when the water level was highest during 2012. (Round to nearest month)