Question 228466
First, divide 3.5(hours) into 196(miles)

{{{196/3.5=56}}}

Linda's average speed was 56mph.
Then, multiply to check.
{{{(56)(3)}}}={{{168}}}
You would multiply 56 mph by 3(hours) and it equals 168.
Next to find, if she's traveling 56mph, then in a half hour, she would have only traveled 28 miles (half of 56).  Now add 168 and 28.

{{{128+68=196}}}