Kaylin is saving money for a new bike. The bike costs $530. Her mom will give her $170. Kaylin will work for the rest of the money by babysitting, where she earns $15 each hour. How many hours will Kaylin need to work to buy a bike?

You can ride your bike around your block 6 times and the whole neighborhood 5 times in 16 minutes. you can ride your bike around your block 3 times and the whole neighborhood 10 times in 23 minutes. how long does it take you to ride around the neighborhood?