It varies depending what else it is equipped with and whether or not it's attached to a squad as a dedicated transport. Due to copyrights, we can't answer any questions on points, so I encourage you to buy and read the codex for your answer.
I believe they are worth 10 points because there just elves with heavy armour and a elf sword
Heavy support itself doesn't cost any points, you are allowed to put 3 units in it but how much you put in it is up to you on a game to game basis.
he's worth 275 points
It is worth 18 points.
The yellow is worth 2 points and the brown is worth 4 points.
M is worth 3 points.
an ork is worth 6 points on its own
It is worth 2 points
A touchdown is worth six points in American football.
six points
The letter D is worth 2 points.
In Euchre, a renege is worth two points.