A train traveled 34 miles in 20 minutes. How many miles per hour was it traveling?

\( \begin{array}{ll}\text { 10) }-3 \frac{2}{5} \times-\frac{6}{5} & \\ \begin{array}{ll}\text { A) } 4 \frac{2}{25} & \text { B) } 2 \frac{139}{175}\end{array}\end{array} \)

28) \( \frac{1}{5} \) \( \begin{array}{ll}\text { A) } 0.4 & \text { B) } 0.2 \\ \text { C) } 150 & \text { D) } 0.02\end{array} \)

\( \frac{5}{8} \) \( \begin{array}{ll}\text { A) } 6.25 & \text { B) } 0.625 \\ \text { C) } 0.0625 & \text { D) } 0.675\end{array} \)

26) \( \frac{1}{2}-\left(\frac{1}{3} \times-2 \frac{3}{5}\right) \div \frac{3}{5} \) \( \begin{array}{ll}\text { A) } 1 \frac{17}{18} & \text { B) } 1 \frac{7}{9} \\ \text { C) } 2 \frac{1}{9} & \text { D) }-1 \frac{7}{18}\end{array} \)

Add and simplify. 15) \( \frac{7}{4}+\frac{7}{12} \)