Answer:
The answer to your question is: letter C
Step-by-step explanation:
Multiplicative inverse is a pair of numbers which product gives 1.
Then
x will be our number
-9x = 1
x = - 1/9
because
-9 x [tex]\frac{-1}{9}[/tex] = [tex]\frac{9}{9}[/tex] = 1
