Amarble factory makes single marbles, then puts them in boxes of 10, cartons of 100, and crates of 1,000. how can the marble factory 21,650 marbles?

hi there!

question 1 answer: p/q can be terminating when q = 5^m * 2^n

question 2 answer: -1 and -1

question 3 answer: -4

question 4 answer: 5/12

hope this : )