Answer :
The answer is A. You do [tex] \frac{part}{whole} = \frac{percent}{100} [/tex]
For this, it means: [tex] \frac{14}{total books} = \frac{35}{100} = (1400=35*total) = (1400/35 = total) = 40[/tex]
For this, it means: [tex] \frac{14}{total books} = \frac{35}{100} = (1400=35*total) = (1400/35 = total) = 40[/tex]