For the following questions answer them individually
Hema starts from her home eastward in order to go to school. She took right turn and took left to reach school. Which direction was her school from home?
The structure of the eye which serves to refract and focus light rays upon retina is called -
Find the median of the discrete values.
$$(a + 4), (a - 3.5), (a - 2.5), (a - 3), (a - 2), (a + 0.5), (a + 5) and (a - 0.5)$$.