In 1995, the life expectancy of males in a certain country was 65.3 years. In 1999 it was 68.8 years. Let E represent the life expectancy in year t and let t represent the numbers of years since 1995.

the linear function E(t) that fits the data is,
E(t)=_t+_ ( round to the nearest tenth)

Use the function to predict the life expectancy of males in 2007.
E(12)=_ (round to the nearest tenth)

E= 65.3 + (68.8-65.5)t/4