Milk Availability Per capita availability for plain and flavored whole milk in the U...

Milk Availability Per capita availability for plain and flavored whole milk in the United States can be modeled as

and per capita availability for all plain and flavored whole, low fat, and skim milk can be modeled as

where t for both models is the number of years after 1997, 0 ≤ t ≤ 10.

(Source: Based on data from USDA/Economic Research Service [February 27, 2009])

a. Write a model for per capita availability of non-whole milks.

b. Write a model for the availability of whole milk as a percentage of all milk.