Tuition costs at various colleges vary from $15,000 to $30,000 annually. These tuitions are expected to increase over time. If the annual rate of increase is 3 percent, what will be the new range in tuition costs in eiaht years? Use Appendix A to answer the questions. Round your answers to the nearest dollar. The range at 3 percent is $ If the rate doubles from 3 to 6 percent, what will be the range in tuition costs after eight years? Use Appendix A to answer the questions. Round your answers to the nearest dollar. The range at 6 percent is $