Answer:
B.
Step-by-step explanation:
I'm assuming it's written like this when solving it: [tex]9\frac{4}{5} x-\frac{4}{80} x[/tex]
first change the mixed number to an improper fraction and change to a common denominator
[tex]\frac{49}{5}x-\frac{4}{80}[/tex] -----> [tex]\frac{784}{80} - \frac{4}{80}[/tex]
[tex]\frac{784}{80}x - \frac{4}{80}x = \frac{39}{4}x\\[/tex] ≈ [tex]9\frac{4}{5}x[/tex]