Depends on the park and the day, and how long you're staying! The website can help you calculate specifically.
Ticket prices fluctuate a bit, check Dinseys website but think the general price for a 1 day ticket for an adult is around $120 now
Depends upon the number of parks and days you want to visit.
You could book online you get various options. Choose wisely the various options
Around 120 a day for adult at Magic Kingdom. Check website for deals and rates though
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