Important Notes and I hings to Consider

You may only use concepts presented through chapter $3$ with the exception of the optional input verification which is presented in chapter $4.$

Payment Function Implementation

If you recall from Chapter $3\text{'}$s lecture, $C++$ does not have an exponent operator. If you need to raise a value to a power, you need to use the pow$()$ function. In order to use the pow$()$ function in your program, you need to include the cmath header file $-$ #include $95-96599000\mathrm{.}992\mathrm{.}5$$$599,000\mathrm{.}992\mathrm{.}50\%$$$3,994\mathrm{.}07$$$718,933\mathrm{.}31$$$119,932\mathrm{.}32$