Final answer:
Jordan runs 9 miles in 12 days by multiplying the daily running distance (3/4 mile) by the number of days (12).
Step-by-step explanation:
Jordan runs 3/4 mile each day. To find out how many miles Jordan runs in 12 days, we need to multiply the distance she runs in a day by the number of days. This can be calculated as follows:
(3/4 mile/day) × 12 days = 9 miles
Therefore, Jordan runs a total of 9 miles in 12 days.