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He needed to make sure that Dumbledore was dead, because Dumbledore, was a very powerful wizard. Avada Kedavra is the quickest and less painful way. Snape didn't want Dumbledore to die painfully because he was, after all, on the same side.
Dumbledore put a cursed ring on his hand which would have killed him had Snape not stopped it. Snape told Dumbledore he only had about a year left to live and Dumbledore knew that Voldemort was plotting his death but didn't want Draco Malfoy's soul to be damaged by this. He also knew that Voldemort would want the Elder wand and that Snape needed to keep convincing Voldemort he was on his side. So, Dumbledore told Snape to kill him which meant Voldemort trusted him, Draco kept his soul intact and Dumbledore died as the last true owner of the Elder wand - although because Draco disarmed him before he died that part of the plan didn't work. Also because Dumbledore says that he would rather be killed by Snape than one of the other Death-Eaters, such as Belatrix Lestrange who, as Dumbledore put it 'like to play with their food'. Snape also made an unbreakable vow to Narcissa (or Cissy) Malfoy, to help Draco in his deed set by 'The Dark Lord', and if it should seem Draco would fail, he commit the deed himself. (The deed being to kill Albus Dumbledore)
The sword wasn't destroyed. No mention of it was made after the final battle, but it was almost certainly replaced in its case in the Headmaster's Office once it was no longer needed.
Dumbledore wanted Snape to kill him because otherwise Draco Malfoy would have had to do it, or be killed. neither of which Dumbledore wanted. Because he is already slowly dieing from the Horcrux ring that he put on his finger (the reason he has a black arm) and because Voldemort ordered Drako to kill Dumbledore and Dumbledore doesn't want it on Drako's conscience. Also, Snape needed to kill Dumbledore to silence any speculation with the Death Eaters about who's side he is really on. ------------------------------------------------------------------------------------------------ Dumbledore wanted Snape to kill him so that Draco's soul wouldn't be damaged, ripped apart on his acount. When Snape asked "what about my soul?" Dumbledore replied: do you think it would affect you by helping an old man avod pain and humiliation." or something like that.
No. Quite the opposite, the Dursleys hated magic. They were chosen to be his guardians because they were his only living relatives. Dumbledore needed somebody who shared his mother, Lily's, blood to invoke powerful magic that would protect Harry until he turned seventeen.
If the house is in two names then two signatures will be needed, unless one of those people are deceased.
many
The number of signatures needed to pass a petition will depend on what type of petition it is and how it was set up at the beginning. There is no specific number as to how many signatures are needed for a petition to pass.
Slughorn was reluctant to work at Hogwarts; Harry helped Dumbledore convince Slughorn that it was in his (Slughorn's) best interest to do so - as Dumbledore had evidently foreseen. Apparently the main reason Dumbledore wanted Slughorn in Hogwarts is because Slughorn had some important information (which he really preferred to keep secret), which Harry and Dumbledore needed to defeat Lord Voldemort.Slughorn was reluctant to work at Hogwarts; Harry helped Dumbledore convince Slughorn that it was in his (Slughorn's) best interest to do so - as Dumbledore had evidently foreseen. Apparently the main reason Dumbledore wanted Slughorn in Hogwarts is because Slughorn had some important information (which he really preferred to keep secret), which Harry and Dumbledore needed to defeat Lord Voldemort.Slughorn was reluctant to work at Hogwarts; Harry helped Dumbledore convince Slughorn that it was in his (Slughorn's) best interest to do so - as Dumbledore had evidently foreseen. Apparently the main reason Dumbledore wanted Slughorn in Hogwarts is because Slughorn had some important information (which he really preferred to keep secret), which Harry and Dumbledore needed to defeat Lord Voldemort.Slughorn was reluctant to work at Hogwarts; Harry helped Dumbledore convince Slughorn that it was in his (Slughorn's) best interest to do so - as Dumbledore had evidently foreseen. Apparently the main reason Dumbledore wanted Slughorn in Hogwarts is because Slughorn had some important information (which he really preferred to keep secret), which Harry and Dumbledore needed to defeat Lord Voldemort.
He needed to make sure that Dumbledore was dead, because Dumbledore, was a very powerful wizard. Avada Kedavra is the quickest and less painful way. Snape didn't want Dumbledore to die painfully because he was, after all, on the same side.
You cannot even spell signatures correcty
That depends on the company rules.
over 50% of students parents
Because he couldn't get laid and needed to take out frustration on other men. It gave him sexual release.
No, as both signatures are needed for a passport.
Obviously not if it says it needs 2 signatures.
3% of the voters for that state or district, which in most districts is approximately 20,000 people.