Answer:
Total number of copies sold to date = 361628.
Step-by-step explanation:
Let the number of copies sold to date = a
It's given that number of copies sold in the first month = 31100
These copies were 8.6% of the number of copies sold to date.
Therefore, 8.6% of a = 31100
a × [tex]\frac{8.6}{100}=31100[/tex]
a = [tex]\frac{31100}{0.086}[/tex]
a = 361627.907
a ≈ 361628
Therefore, total number of copies sold to date = 361628.
