Sally made $0.4 * 20=8$ shots originally. Letting $x$ be the number of shots she made, we have $\frac{8+x}{25}=0.52$. Solving for $x$ gives us $x=5$ 
After Sally takes 20 shots, she has made $40 \textbackslash\%$ of her shots. After she takes 5 more shots, she raises her percentage to $52 \textbackslash\%$. How many of the last 5 shots did she make? (2004 AMC 8, Question\#6) 
(a) $$1$$ 
(b) $$2$$ 
(c) $$3$$ 
(d) $$4$$ 
(e) $$5$$ 