Problem $7-10$

fuition 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 $4$ 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 $4$ percent is $ $-$$

If the rate doubles from $4$ to $8$ 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 $8$ percent is $

$-$$