Lauren bikes 1 1/3 miles in 1/10 hour. what is her rate of speed in miles per hour?

So,

This is how I mentally do it.

Convert 1 1/3 miles to decimal form.
1 1/3 --> 1.3333333...

Since that is 1/10 of the desired rate, we simply move the decimal place one place to the right.
1.333333... --> 13.3333333...

Convert to fraction form.
13 1/3 mph

Lauren bikes 13 1/3 miles per hour.

Exponential function