I’m not good with these pls help 10 points not 5

Answer:
[tex]-4[/tex]
Step-by-step explanation:
To divide a fraction by another fraction, change the divide sign into a multiply sign and flip the second fraction.
[tex]-\frac{4}{5}\div \frac{1}{5}=-\frac{4}{5}\times \frac{5}{1}[/tex]
Multiply:
[tex]\frac{-4*5}{5*1}=\frac{-20}{5} =-4[/tex]