What value(s) of x would make f(g(x)) and g(f(x)) commutative? A. x greater than or equal to 1 or x less than or equal to -1
B. -1 less than or equal to x less than or equal to 1
C. any value of x
D. no value of x

Cody started biking to the park traveling 15 mph, after some time the bike got a flat so cody walked the rest of the way, traveling 4 mph. if the total trip to the park took 6 hours and it was 46 miles away, how long did cody travel at each speed? solve using rate times time= distance