Answer:
8 students
Step-by-step explanation:
5⁴a²
(5³a³)÷5a-¹×5-²a²
5³a³÷5a-¹×5-²a²
5³a³÷5¹-²×a-¹+²
5³a³÷5-¹a
5³a³/5-¹a
5³-(-¹)a³-¹
4¹⁸
(4⁻³)⁻⁶
= 4⁽⁻³⁾⁽⁻⁶⁾
= 4¹⁸