Lol all the interesting ppl disappeared. no one wants to ta lk anymore

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.

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

How can (square root of 25) ^2 be rewritten?