5)
15
On Sunday, Alex hiked the entire trail that was 4 miles long. On Monday, he hiked
the entire length of a trail that was 5.2 miles long. On Tuesday, he started out on a
trail that was 3 /4 miles long, but he did not hike the final 1.8 miles. How many
miles did Alex hike in all on Sunday, Monday, and Tuesday?