It takes 52 minutes for 5 people to paint 5 walls. how many minutes does it take 20 people to paint 20 walls?

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?

Aprofessional hockey team has noticed that, over the past several seasons, as the number of wins increases, the total number of hot dogs sold at the concession stands increases. the hockey team concludes that winning makes people crave hot dogs. what is wrong with the hockey team's conclusion? a) it does not take into account the attendance during each season. b) it does not take into account the number of hamburgers sold during each season. c) it does not take into account the number of concession stands in the hockey arena. d) it does not take into account the number of seasons the hockey team has been in existence.

How can constraints be used to model a real-world situation?