The answer is a space contains at
least four points that do not lie in a same plane or not all in the same plane. An axiom is a statement or
proposition that is observed as being established, accepted, or self-evidently
true. In other words, it is any statement or mathematical statement that functions
as a starting point from which other statements are logically derived. So this
can be found on postulate 1 that states “a line containing at least two points;
a plane contains at least three points not all in one line; and a space
contains at least four points not all in the one plane.”
N is the number of the Tshirt c is the cost the relationship between the cost and the number of the Tshirt is: 12n+3=c so if 1 is the number of the tshirt so the cost is 12.1+3=12+3=15 if n=2 c=12.2+3=24+3=27 and etc.....