Answer:
Neither. 72 students failed.
Step-by-step explanation:
40% of 180 is 72
Answer:
Step-by-step explanation:
A relation from a set X to a set Y is called a function if each element of X is related to exactly one element in Y. That is, given an element x in X, there is only one element in Y that x is related to. ... This is a function since each element from X is related to only one element in Y.
A simpler form of this expression would be 19y-9
