If the letters in the phrase mathematicsrules endlessly repeat, what would the 500th letter be?

The vet charges $45 for an office visit and $10 for each vaccination your dog needs. write an eaquation

The lengths of two sides of a right triangle are given. find the length of the third side. round to the nearest tenth if necessary. a) y = 12/5x + 39/5 b) y = 5/12x + 5/39 c) y = 12/5x - 39/5 d) y = 5/12x - 5/39

Iknow its nothing to do with education, but what type of thing should i wrote here? ? : ) its for mcdonald's btw.