George's page contains twice as many typed words as Bill's page and Bill's page contains 50 fewer words than Charlie's page. If each person can type 60 words per minute, after one minute, the difference between twice the number of words on Bill's page and the number of words on Charlie's page is 210. How many words did Bill's page contain initially?  Bill's page initially contained        words. 

A car travels 450 kilometers in 5 hours. What is its average speed in kilometers per hour?

Add. Write your answer as a mixed number in simplest form. \[ 5 \frac{2}{5}+6 \frac{2}{5} \]

What is \( \sqrt[3]{125} ? \)

Subtract. Write your answer as a mixed number in simplest form. \[ 4 \frac{3}{5}-2 \frac{2}{5} \]

Use \( <,> \), or \( = \) to compare the \( \begin{array}{cc}\begin{array}{ll}\text { (a) } 0.37 & \square 0.39 \\ \text { (b) } 6.4 & \square 6.40 \\ \text { (c) } 0.04 & \square 0.1\end{array} & \square<\square \\ \square>\square & \square=\square \\ \times & 5\end{array} \)