Bobby's cat runs x mph. Bobby's dog runs twice as fast as his cat. How far can Bobby's cat run in 30 minutes?

Bobby's cat can run 0.5x miles in half an hour.

Step-by-step explanation:

If the cat can run x mph, that means in half an hour, he can run 0.5x, because 30 minutes is half of an hour, and therefore half of x.

And just in case, his dog can run x miles in half an hour. (2x times 0.5 of an hour).

The term referred to the space provided is Omnibox. This browser address bar allowed to solve math equations, convert measurement, set timers and define words. It is similar to a typical browser such as google chrome and Mozilla firefox. hope this helps