Question 1000861
Arrange a data table.

<pre>
            rate          time         distance
WALK         r            t            {{{rt}}}
JOG          2r          {{{t+1/3}}}        {{{2r(t+1/3)}}}
Total                                  {{{rt+2t(t+1/3)}}}
</pre>
20 minutes is the same as {{{1/3}}} of an hour.


Simplify the total distance expression.