3 is the greatest common denominator
30% as a decimal is 0.3
Multiply 780 by 0.3
780(0.3)=234 female doctors
Multiply 9 books by 55% by doing
9 x .55 = 4.95
We can't have 4.95 books, though so it rounds down to 4 because you can't just add another .05.
I’m pretty sure they’re collinear. I’m so sorry if I’m wrong.