Answer:

Step-by-step explanation:
Given





Required
Probability of selecting a yellow then orange rock
From the question, we understand that the probability is that of without replacement.
Since the yellow, is first picked.
We need to determine the probability of picking a yellow rock, first.



The rock has reduced by 1;
Next is to determine the probability of picking an orange rock



The required probability is calculated as thus:




A) 18
Apparently my answer has to be 20+ characters so this is filling space
The 9 is in the Tenths place
Answer:
as in the number line negative digits occur on the left side if we subtract -2 from -8 we will get our answer that is -6
Step-by-step explanation:
-8-(-2)
-8+2
-6