Necesito ayuda urgente x favor los que esten conectados quiero respuesta sin bromas y con resolución

Standard deviation of 19,29,21,22,23

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?

When steve woke up. his temperature was 102 degrees f. two hours later it was 3 degrees lower. what was his temperature then?