Answer:
3.
Step-by-step explanation:
3(n + 4) = 21
3n + 12 = 21
3n = 21 - 12 = 9
n = 3.
Increase, because people hate mask breath and having mints has helped them not having to smell horrible breath whilest wearing a mask
If there are no duplicates among the rational numbers and no duplicates
among the irrational numbers, then there must be exactly 6 points.
None of the rational numbers can also be irrational, and none of the
irrational numbers can also be rational.