9. Change 0.45 into percent.
10.? Change \( -\frac{2 \pi}{3} \) into degree measure.
11. Find sum of these fraction, \( \frac{1}{5}, \frac{13}{15} \) and \( \frac{6}{15} \).
12 Find the \( \angle C D \) of \( \frac{3}{4}, \frac{2}{5} \) and \( \frac{1}{6} \).
13 Find the radian measure of -12 .
14. Add these fraction \( \frac{1}{4}, \frac{2}{3} \) and \( \frac{1}{8} \)