Posted by **Diane** on Friday, January 7, 2011 at 10:21pm.

problem 1 Life expectancy of man 73.7, in 2002 it was 77.5 years since 1995

E(t) ? t+?

E (11)= ?

problem 2 14m+5n-5m-7n

- algebra -
**drwls**, Saturday, January 8, 2011 at 6:15am
1. You have stated the problem incorrectly. If E was 77.5 "since 1995", it could not be 73.7 in 2002. Also, the trend is incorrect. Thirdly, you have not defined what year is t = 0.

2.Combine m terms and n terms separately. You should get 9m -2n

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