4. 0.0293t
Population Growth. The population of a town increases according to the model
P(t) = 2500(2.7182818) where t is the time in years, with t = 0
corresponding to 1990. Use the model to estimate the population in 2005

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?