Question 1132245
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The question that is asked is this:<br>
If he runs 5.9 miles each weekday, ABOUT how much does he run EVERY month?<br>
Since it says EVERY month, it can be assumed that his running habit continues throughout the year.  So the answer is supposed to be for a typical month -- not a particular month.<br>
So the approach used by tutor @josgarithmetic is appropriate -- find the number of miles he runs in a year and divide by 12.<br>
(5.9 miles per day) times (365 days per year) times (5 weekdays per 7-day week), all divided by 12:<br>
{{{((5.9)(365)(5/7))/12}}} = 128 to the nearest whole number.