Answer: 60 miles
Step-by-step explanation:
Given
It takes ferry 2 hours to travel to town A and only
to travel back to town B.
Speed of current is 
Suppose the speed of the ferry is
mph
Distance traveled in both the cases is same, but it took more time traveling to city A that is, ferry is moving upstream and downstream for returning time.

Distance between the towns is 
Answer:
4
Step-by-step explanation:
2x - 1 = 7
2x = 8
x = 4
Answer: I was made for this question the answer is: w=8
Step-by-step explanation:
First you do: 150-30 since you want to cancel it out.
Then: 120/15=8
The answer:8