8. Is  $\frac{8}{9}$  the multiplicative inverse of $-1\frac{1}{8}$ ? Why or why not?

We know that A is the multiplicative inverse of B if   B$\times$A = 1
$\frac{-9}{8}\times \frac{8}{9} = -1$    Thus $\frac{8}{9}$ is not the multiplicative inverse of $\frac{-9}{8}$