There are 30 chickens at a farm that are white. This number represents 12% of the total number of chickens at a farm. How many total chickens are at this farm?

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