The answer is 12 hours. It would take 12 hours.
No because they're two separate shapes of different porportions. one is 5 cm x 9 cm and the other is 3 x 7 they're not similar. It's hard to explain but a shape that was 10 cm x 30 cm would be similar to the same shape that was 1 cm x 3 cm's.
It only the last one.
Hope this helps :)
She drinks 4.27 grams on calcium in 14 days at one glass of milk containing 14 mg per day
