Female rabbits are either juvenile\\r\\nor adult. each month, each juvenile\\r\\ngrows to adulthood and each adult\\r\\nfemale gives birth (on average) to\\r\\none juvenile fem

Female rabbits are either juvenile\\r\\nor adult. Each month, each juvenile\\r\\ngrows to adulthood and each adult\\r\\nfemale gives birth (on average) to\\r\\none juvenile female. Starting with\\r\\none juvenile female rabbit, how\\r\\nmany female rabbits will there be\\r\\nafter 10 months ?\\r\\n(A) 71\\r\\n(B) 79\\r\\n(C) 81\\r\\n(D) 89\\r\\n\\r\\n, \\r\\n \\r\\n\\r\\n30. The number of positive divisors of\\r\\n8000 is :\\r\\n(A) 25\\r\\n(B) 26\\r\\n(C) 28\\r\\n(D) 18\\r\\n\\nplease give me explanation above 2 questions.