A marathon is \( \overline{\bar{a}} 26 \) mile run. If a marathon runner has run 19 miles so far, what percent of the marathon has she completed?

To find out what percent of the marathon has been completed, you can use the formula: \[ \text{Percent Completed} = \left(\frac{\text{Distance Run}}{\text{Total Distance}}\right) \times 100 \] Substituting the values for the distance run (19 miles) and the total distance of a marathon (26 miles): \[ \text{Percent Completed} = \left(\frac{19}{26}\right) \times 100 \approx 73.08\% \] So, the marathon runner has completed approximately \( 73.08\% \) of the marathon. If you round this, you could say she's completed about \( 73\% \) of the marathon. Keep going, it's nearly time to cross that finish line!