4. A thermometer has its stem marked in millimeter instead of degree celsius. The lower fixed point
is 30mm and the upper fixed point is 180mm.
Calculate the temperature in degree celsius when
the thermometer reads 45mm.​

The results of huy's eye exam show that he is nearsighted. which explanation should huy expect to hear? "you need convex lenses to shorten the distance that light takes to focus in your eyes." "you need concave lenses to shorten the distance that light takes to focus in your eyes." "you need convex lenses to lengthen the distance that light takes to focus in your eyes." "you need concave lenses to lengthen the distance that light takes to focus in your eyes."