The kinetics of the following reaction have been studied:

$3Br{O}^{-}Br{O}_3^{-}+2B{r}^{-}$

The rate of of appearance of $Br{O}_3^{-}$was measured as

$\frac{Br{O}_3^{-}}{}t=6\mathrm{.}00{10}^{-2}mol{L}^{-1}{s}^{-1}$

$($a$)$ What is the rate of the reaction in $mol{L}^{-1}{s}^{-1}?$

$($b$)$ What is $\frac{Br{O}^{-}}{}t$ in $mol{L}^{-1}{s}^{-1}?$

$($c$)$ What is $\frac{Br}{}t$ in $mol{L}^{-1}{s}^{-1}?$