Answer:
123 domestic stamps
89 foreign stamps
Step-by-step explanation:
Assuming that each marble can be picked with equal probability, we notice that there is a total of
![4+2+5+1+7 = 19](https://tex.z-dn.net/?f=%204%2B2%2B5%2B1%2B7%20%3D%2019%20)
marbles, of which 2 are red.
So, the probability of picking a red marble is
![\dfrac{2}{19}](https://tex.z-dn.net/?f=%20%5Cdfrac%7B2%7D%7B19%7D%20)
In fact, as in any other case of (finite) equidistribution, we used the formula
![P(\text{event}) = \dfrac{\text{number of favourable cases}}{\text{number of all possible cases}}](https://tex.z-dn.net/?f=%20P%28%5Ctext%7Bevent%7D%29%20%3D%20%5Cdfrac%7B%5Ctext%7Bnumber%20of%20favourable%20cases%7D%7D%7B%5Ctext%7Bnumber%20of%20all%20possible%20cases%7D%7D%20)
Answer:
5.04
Step-by-step explanation:
Area = 12x16 / 2 = 96
answer
B. 96 sq. cm