A speculator has purchased land along the southern Oregon coast. He has taken out a ten$-$year loan with annual payments of $$7,200.$ At the end of ten years, he believes that he can sell the land for $$100,000.$ What is the interest rate that the speculator will earn?

$8\mathrm{.}12\%$

$7\mathrm{.}88\%$

$7\mathrm{.}45\%$

$7\mathrm{.}99\%$