Answer:
5a
Step-by-step explanation:
We can make a mathematical equation with the information obtained:
final value = initial value * (1 + percentage)
So, if we want to know the inicial value, what we have to do is clear it.
So:
[tex]initial value = \frac{final value}{1+percentage}[/tex]
So, in this case:
[tex]initial value=\frac{8a}{1+0.60} = \frac{8a}{1.6}=5a[/tex]
