Final answer:
Paula skates 1/13 mile in 1 hour. This is calculated by dividing the total distance (2 miles) by the total time (13 hours) to find her hourly speed.
Step-by-step explanation:
To determine how many miles Paula skates in 1 hour, we need to calculate her speed by dividing the total distance she skates by the total time it takes her to skate that distance. She skates 2 miles in 13 hours, so her speed is 2 miles ÷ 13 hours, which simplifies to ⅓ mile per hour.
Therefore, the correct answer is b) 1/13 mile. Paula skates ⅓ of a mile in 1 hour. This is a simple example of calculating average speed, which is a basic concept in mathematics.