Answer:
an acronym is when letters are used to stand for words.
for example, U.S.A., United States of America
another example, N.B.A., National Basketball Association
Explanation:
N.F.L. National football league
Answer:
Irregular
Explanation:
You can think of "regular" as several neat rows or many similar things. They are all "regular" with each other and you can sort of predict what will come next.
There does not seem to be a specific pattern here, so we can conclude the answer most likely is irregular.
