Answer:
[tex]Volume\ of\ 8\ coffee\ drink=0.5\ gallons[/tex]
Step-by-step explanation:
[tex]Volume\ of\ 1\ coffee\ drink=6.25\times 10^{-2}\ gallons\\\\Volume\ of\ 8\ coffee\ drink=8\times Volume\ of\ 1\ coffee\ drink\\\\Volume\ of\ 8\ coffee\ drink=8\times 6.25\times 10^{-2}\ gallons\\\\Volume\ of\ 8\ coffee\ drink=50\times 10^{-2}\\\\Volume\ of\ 8\ coffee\ drink=50\times \frac{1}{100}\\\\Volume\ of\ 8\ coffee\ drink=\frac{1}{2}\\\\Volume\ of\ 8\ coffee\ drink=0.5\ gallons[/tex]