http://map.gsfc.nasa.gov/universe/bb_tests_exp.html

"The current WMAP results show the Hubble Constant to be 71.0 ± 2.5 (km/sec)/Mpc. If the WMAP data is combined with other cosmological data, the best estimate is 70.4 ± 1.4 (km/sec)/Mpc"

so 69.0 - 71.8

how far away does something need to be from a point for it to be moving away at the speed of light?

299 792 458 m/s / 70,400 m/s = 4258.41559659090 mega parsecs =4 258415596.5909 parsecs = 13.8 billion light years

are there any implications of a large enough black hole that its event horizon has a 13.8 billion light year radius?

or would the expansion of the universe not even come into play due to the presence of the black hole?

also, 13.8 billion light years, i understand thats pretty close to what we think the age of the universe is, any implications of that?

Sorry if i have anything wrong.

They match so well because they are essentially the same calculation. If you play with some simple dimensional analysis you will find the inverse of the recession velocity is just the age of the universe (assuming the Hubble Constant is constant, which is approximately true for most of the universe's history). So it provides a decent estimate of the age.

This is of course because at the moment of the big bang the universe started expanding at the speed of light and as far as we now it still is?

And if the universe is ever expanding with the same amount of beginning material then everything is consequently getting farther apart from each other (or at least from the universes center).

So my question is: Is it impossible to see the edge of the universe? Because if u looked right at it wouldnt it continually just go farther and farther away at a speed we cant keep up with?

Unless we figure out a way to travel faster than light it is indeed impossible to see past the edge of the observable universe. There is no edge to the actual universe though just as there is no center. Even if you could travel at an arbitrarily high speed you could not get to the edge because there is no such thing.

Dark matter is slowing the expansion of the universe someone help

Gravity (including dark matter) reduces the expansion rate (everything is attracted to everything else). However, the expansion rate is actually increasing with time, instead of decreasing. This mean there is another force acting to increase the expansion rate faster than gravity is decreasing it. No one really knows what this force is (there is some conjecture, but nothing convincing). But it's hard to talk about a force if you don't have a name for it, so it is called "dark energy".

Imagine you were doing an experiment, where you roll a ball down a dark hallway, and your friend measures its speed at the other end of the hallway. You always find that the ball is moving faster when it gets to your friend then when you released it. You have "discovered" a force. You can even quantify how much energy is added to the ball during its trip down the hallway, but you have no idea what the the force actually is. You might call this "dark hallway energy" until you figure out what is happening in that hallway.

Wow that's crazy

So obvious to see that none of you even came close to understanding what the Op was talking about.

I actually just ran an interesting thought experiment on what would happen if you had a blackhole of infinite size.
It did bring up some concepts I hadn't really given much thought too thanks Op for a good post.