3. A bat can emit a sound wave that travels at a speed of 342 m/s. Speed, s, can be
represented by the formula, s = d/t, where d is the distance, in metres, and t is the
time, in seconds.
a) Write an equation that can be used to determine the distance a bat
is away from an object if it takes 0.3 s for the sound wave to travel to
the object and back.
b) How far is the bat from the object?