The density of an object is the qoutient of its mass and its volume

If 1 is divided by the sum of y& 4. the result is equal to 3 divided by 4 .find the value of m?

What’s the domain of this function? fastttt

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