Consider the following function: $(1,4)$

double mystery$($int x$,$ double y$,$ char ch$)$

$\{$ if $($x $>0$ && isupper$($ch$))$ return$($sqrt$($x$1\mathrm{.}0)+($static$\_$cast$($ch$)-65))$; else return$($pow$($v$\mathrm{.}3)$x$-$static$\_$cast$($ch$))$; $\}$

What is the output of the following C$++$ statements? $($Assume that the output of decimal numbers is set to two decimal places.$)$ Submit your answer to dropbox.

a$.$ cout $<<$ mystery$(16,2\mathrm{.}0,\text{'}$A$\text{'})<<$ endl;

b$.$ cout $<<$ mystery$(5,3\mathrm{.}0,***)<<<$ endl;

c$.$ cout $<<$ mystery$(-7,2\mathrm{.}5,\text{'}$T$\text{'})<<<$ endl;