You are hiking along a trail in a wide, dry canyon where the outdoor temperature is T = 28.5° C. To determine how far you are away from the canyon wall, you yell "Hello" and hear the echo t = 3.05 s later.

Randomized Variables:
T = 28.5° C
t = 3.05 s

If you stood at the same point on a cold morning where the temperature was T₂ = -1.5 degrees C, how long would it have taken for you to hear the echo, in seconds?