Arithmetic Sequence Jessica was trying to prepare for a marathon. She had already started preparing and beginning on week 1 of training she ran 3.5 miles every other day. On week 2, she increased to running 5 miles every other day. On week 3, she increased to running 6.5 miles every other day. So, each week she continued to increase the amount she ran by 1.5 miles. Week Miles 1 3.5 2 3 5.0 6.5 A marathon is 26 miles long. In which week will she be actually practicing by running 26 miles during her practice runs? 14 16 18 19 Question 14 / 16 7 points).