Tuition costs at various colleges vary from $10,000 to $30,000 annually. These tuitions are expected to increase over time. If the annual rate of increase is 2 percent, what will be the new range in tuition costs in twelve years? Use Appendix A to answer the questions. Round your answers to the nearest dollar. The range at 2 percent is $ - $ .

If the rate doubles from 2 to 4 percent, what will be the range in tuition costs after twelve years? Use Appendix A to answer the questions. Round your answers to the nearest dollar. The range at 4 percent is $ - $ .