Given. R=0 3 -4 5 and S=-2 -8 0 2. what is X if X+R=S?

Which undefined geometric term is described as a location on a coordinate plane that is designed by an ordered pair (x, y) ?

Asocial networking site currently has 400,000 active members, and that figure is predicted to increase by 32% each year. the following expression represents the number of active members on the site after t years.

What is the value of x in the this question ?