Yes I think you are correct.
Answer:
6
Step-by-step explanation:
Substitute a = 2 , b = 4 into the expression

= 
= 
= 
= 6
Answer:
Ashley's house is 12.1 miles away from Bridgette's house
Ashley's house is 10.2 miles away from Carly's house
Ashley's house is closer to Carly's house by 1.9 miles
Explanation:
Use the distance formula to calculate the distance between points