The Pythagorean theorem is a^2 + b^2 = c^2. You use it when solving for the sides of a triangle.
Step-by-step explanation:
1 km = 1000 m
1 hour = 3600 s
so,
37.6 km = 37,600 m (still per hour or per 3600 s).
in 1 second now that is
37600/3600 = 10.44444444... m/s
0.75 is greater the 0.0075
a. 
trust me it's the correct answer :)
