​Sally steps on her bathroom scale, and it tells her that sh…

​Sally steps on her bathroom scale, and it tells her that she weighs 145 pounds. When she steps on it again after her shower, she gets the same result. In fact, it has told her that her weight is stable at 145 pounds for several days now. This is very distressing to Sally, because she knows she actually only weighs around 127 pounds. Based on her observations, what can more accurately be said about the measurements provided by Sally’s scale?

​Xavier wants to see if his daughter knows that she exists….

​Xavier wants to see if his daughter knows that she exists. While he is wiping her face, he puts a red dot on her nose and then shows her own reflection in a mirror. At what age would we expect her to reach up and touch her own nose instead of reaching for the nose in the reflection?