Answer: 6.57 gallons
Step-by-step explanation:
Given
The average consumption of milk per person per year is
[tex]\Rightarrow m=-0.13t+8[/tex]
In year 2008 i.e. t=2008-1997=11 years
Put the value in the equation
[tex]\Rightarrow m=-0.13\times 11+8\\\\\Rightarrow m=-1.43+8=6.57\ \text{Gallons}[/tex]
So, it is 6.57 gallons in year 2008