Question 1201727
<font color=black size=3>
n = number of students in the class.
20% have an A, the remaining 80% do not have an A.
80% of n = 0.80n = 12 students do not have an A.
0.80n = 12
n = 12/0.80
n = 15


Answer: <font color=red>15</font>
</font>