The universe we live in consists of how many dimensions?

You can describe the location of any event ... past, present, or future ... with

four numbers, representing the four dimensions of the universe we live in.

The numbers are the three space coordinates of the event ... the 'x', 'y', and 'z'

of its physical location ... and the 't' of its location in time.

Its very much debatable. some physicists spend their entire life debating questions as such and still never find answers because all science is is a collection of theories