Hey, I really need some help, pls answer both questions. thx

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.

Ineed if you could explain and give me the answer you! this needs done

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.