If i was 17 turning 18 in july what year wold i be born in

You are born in 2001

That is because in 2018 you would be 17 years old and in July, 2019 you would turn 18 years old

Now is the end of 2018

If your 18th B-day is in 2019, then start from the year before

Subtract 2018-17

You were born in July of 2001

answer; is usually (less than) the socially optimal level of consumption;

answer; ///decision making under risk;