Three times the sum of a number and five times the number is 36. what is the number?

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.

Out of $20$ creepy-crawly creatures in a room, $80\%$ are flies and $20\%$ are spiders. if $s\%$ of the total legs belong to spiders, what is $s$?

The graph shows the amount of money noah earned based on the number of lawns he cut. which list shows the dependent quantities in the graph?