The number of visitors to a small pumpkin patch that opened in 2003 increased each year as shown in the table. Predict the number of visitors in 2015, assuming the increase continues at this same rate.
Year 2003 ,2004, 2005, 2006 ,2007, 2008
Visitors 310 332 355 380 406 434 Using the exponential growth formula y = b(1 + r)^t.