Percents - Proportion & Equation

There are 120 7th graders. 40% of them are girls. How many 7th grade girls are there?

 $\frac{part}{120}=\frac{40}{100}$  

 $40\%\ of\ 120\ =\ part\$  

Over the weekend I read 48 pages of a book. That made up 60% of the entire book. How many pages are in the book?

 $\frac{48}{whole}=\frac{60}{100}$  

 $48\ is\ 60\%\ of\ how\ many\ pages?$  

At my last basketball game, I made 16 out of 20 attempted shots. What percentage of shots did I make?

 $\frac{16}{20}=\frac{\%}{100}$  

 $16\ is\ what\ percent\ of\ 20?$