This is a correlation as it describes the relationship of Marcus's running speed with the time of day. The cause of the increase in speed is not elaborated.
B. Negative exponent flip from denominator to numerator and numerator to denominator.
B is the second option.
The rate of change is 2om per hour
Since the second angle + first angle is 90 degrees, the third angle must be 90 degrees to complete the 180 degrees in a circle.
Hope this helps!