Given:
A book sold 42,500 copies in its first month of release. Suppose this represents 7.9% of the number of copies sold to date.
Required:
Total number of copies sold to date.
Explanation:
42500 is just 7.9% of total copies
we need to find total copies
for this
take x number of total copies
[tex]\begin{gathered} x*\frac{7.9}{100}=42500 \\ \\ x=537974.68\approx537975 \end{gathered}[/tex]Final answer:
Total number of copies is 537975