If it is a punchline the answer would be elepants.
If not a punchline animals can keep themselves warm with thick skin or feathers.
Answer:
$350
Step-by-step explanation:
1400 ÷ 4 = 350
(18 neclaces)/(12 days) = 1.5 necklaces/day
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Rate is generally expressed in terms of quantity per time period. ("Per" means "divided by" here.) So, to find the rate, you divide the quantity by the corresponding time period, as above. There are other sorts of rates, but this is perhaps the most common.
The brother has a 1/9 chance of being chosen, and the sister has 1/12. We multiply to get a 1/108 chance.