zoe is 16 years old her brother is 3 years older then half her age . wright a numerical expression for her brother lukes age

At dinner, 2/5 of the people had fish and 1/3 had chicken. if everyone else had lamb, what fraction of the people had lamb? and if 40 people had lamb , calculate the total number of people at the dinner.

Which function has the domain x> -11?

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