Please help maths homework

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

If rt is greater than ba, which statement must be true ?

What is 0.368,0.380,0.365,and 0.383 in order from least to greatest