2013 AMC 10A Problem 9

In a recent basketball game, Shenille attempted only three-point shots and two-point shots. She was successful on 20\% of her three-point shots and 30\% of her two-point shots. Shenille attempted 30 shots. How many points did she score?

\textbf{(A)}\ 12 \qquad\textbf{(B)}\ 18 \qquad\textbf{(C)}\ 24 \qquad\textbf{(D)}\ 30 \qquad\textbf{(E)}\ 36

Full credit goes to MAA for authoring these problems. These problems were taken on the AOPS website.