You are correct! The equation "s = d/t" can be rearranged to solve for distance, which is represented by "d". By multiplying both sides of the equation by "t", we get "d = s * t".
In this case, "s" represents the speed of sound and "t" represents the time it takes for the echo to travel back to you. Plugging in the values given in the question, we have:
d = 343 m/s * 1.4 s
Multiplying the values together, we get:
d = 480.2 m
So, the distance to the cliff is approximately 480.2 meters.