Hello!
0.3 × 0.03 = 0.009
The mass of the flower is 0.009 kilogram.
Answer:
840
Step-by-step explanation:
Given


Required
Determine the number of rankings
The term "ranking" as used in this question implies permutation and the required is calculated using:

Where


So:






<em>Hence, number of ranking is 840</em>
Answer:
518
i don't know if this needs much explaining.