What is the present value of the following? Use Appendix B as an approximate answer, but calculate your final answer using the

formula and financial calculator methods.

a$.$ $$8,600$ in $12$ years at $8$ percent? $($Do not round intermediate calculations. Round your final answer to $2$ decimal places.$)$

Present value

b$.$ $$20,700$ in $7$ years at $10$ percent? $($Do not round intermediate calculations. Round your final answer to $2$ decimal places.$)$

Present value

c$.$ $$28,400$ in $18$ years at $6$ percent? $($Do not round intermediate calculations. Round your final answer to $2$ decimal places.$)$

Present value