Answer: There would be 745 books at the end of month 10.
Step-by-step explanation:
Since we have given that
Number of books initially = 80
Rate of growth = 25% = 0.25
t = 10 months
We need to find the number of books that are expected at the end of month 10.
As we know the formula for "Compound interest":
[tex]A=P(1+\dfrac{r}{100})^t\\\\A=80(1+\dfrac{25}{100})^{10}\\\\A=80(1+0.25)^{10}\\\\A=80(1.25)^{10}\\\\A=745.05[/tex]
Hence, there would be 745 books at the end of month 10.