[tex]\begin{gathered} \text{January}=3,649\text{ miles} \\ \text{February = 2,540 miles} \\ \text{March = 4,067 miles} \\ \text{Total =}3,649\text{ miles}+\text{2,540 miles}+\text{ 4,067 miles} \\ \text{Total =10,256 miles} \\ \text{Total points=}\frac{\text{10,256 miles}}{800\text{miles}} \\ \text{Total points=}12.82\approx13\text{ } \\ \text{The earned 13 points during the thr}ee\text{ months} \end{gathered}[/tex]