Final answer:
Pamela and her friends will travel 210 miles when driving at an average speed of 60 miles per hour for 3 1/2 hours.
Step-by-step explanation:
To calculate the distance Pamela and her friends will travel in 3 1/2 hours at an average rate of 60 miles per hour, we simply multiply the speed by the time. Since there are 3 and a half hours, we can express this as 3.5 hours to make it easier to work with.
Distance = Speed × Time
Distance = 60 miles/hour × 3.5 hours
Distance = 210 miles
Therefore, Pamela and her friends will travel 210 miles in 3 1/2 hours at that speed.