That billboard in the middle of the field says "get the u. s. out of the u. n." from this, it's clear that the united nations is a bad organization.
this is a deductive, valid argument.
true or false?

False. It is an inductive, weak argument.

Explanation:

The given statement is not deductive and valid, because it derives its conclusion only from limited evidence that U.N. is presented in a negative light in this isolated statement.  

The other example, is a survey of students meal choice preferences in the campus canteen. Only because 75% of students in a sample group of 100 said that they do not support availability meat-based meals in the canteen, does not mean that 75% of all students do not support availability meat-based meals as well.

whats the question?

i can't if i don't know the question.

c. wright mills's sociological imagination suggest investigating to explain this increase?