An internet service provider charges ₱ 1.2 for the first minute and ₱ 0.8 per minute for subsequent minutes of a call. If duration of connection is represented as x, and amount charged is represented as y, find the linear equation for this relationship.
A survey of ^@ 600 ^@ students of a school was conducted and it was found that ^@210^@ students like tea while ^@390^@ dislike it. Out of these students, one student is selected at random.
What is the probability that the selected student does not like tea?