Question

please tell me the answer in process ​

Answer 1

Answer:

A horizontal line is one which runs left-to-right across the page. In geometry, a horizontal line is one which runs from left to right across the page. It comes from the word 'horizon', in the sense that horizontal lines are parallel to the horizon. The horizon is horizontal.

Step-by-step explanation:

Answer 2

$\rm{(-2/3)^2 = (-2)^2/3^2 \longrightarrow (-2/3)^2 = 4/9}$