<span>1 hour and 1/3rd of an hour
</span>
so A is right
Answer:

Step-by-step explanation:
Given

Required
Determine the probability of 6 different lower case letters <em>(Question continuation)</em>
<em />
There are 26 lower case letters.
The first can be any of letters 26
The second can be any of letters 26 - 1
The third can be any of letters 26 - 2
The fourth can be any of letters 26 - 3
The fifth can be any of letters 26 - 4
The sixth can be any of letters 26 - 5
Number of selection is:



The probability is:



<em></em>
<em> --- approximated</em>
Answer: 
Step-by-step explanation:
Given
The two communication mask are 2 km apart
Ubi's home is 500 m east of one of the mask
Suppose its distance from the other's is x
From the figure, we can write
Answer:
yesterday 9 today 10
Step-by-step explanation:
46/5= 9.2
52/5= 10.4