The average consumption of milk m in gallons per person per
     The average consumption of milk, m in gallons, per person per year can be approximated by the equation m= - 0.13t + 8 where t is the munber of years after 1997. Predict the consumption of milk in the year 2008.  
  
  Solution
m= -0.13t+8
2008 is 11 years after 1997, so substitute 11 for t
m= -0.13(11)+8
m=6.57 gallons

