Final answer:
Carina hiked for 2.5 hours at an average speed of 3.75 mi/h, leading to a total distance of 9.375 miles, which is option b).
Step-by-step explanation:
To calculate how many miles Carina hiked, we need to multiply the time she hiked by her average speed. The formula for distance is:
Given that Carina hiked for 2.5 hours at an average speed of 3.75 mi/h, her distance hiked can be calculated as follows:
Distance = 3.75 mi/h × 2.5 h = 9.375 miles
Therefore, the answer is b) 9.375 miles.