Do you mean (2/3) times 3X or is x a multiplication symbol
Given:
The expression is
.
To find:
The position of parentheses inserted in the expression to get the value 19
Step-by-step explanation:
We have,

Now,




There are more ways to apply the parenthesis, but we do not get 19.



And many more possibilities.
Therefore, the expression after inserting the parentheses is
.
<h3>Answer:</h3>
1/120
<h3>Explanation:</h3>
The numerator of the probability fraction will be the number of ways to arrange 3 items: 3! = 6. So the probability fraction is ...
... 6/720 = 1/120
_____
The 3 items are the three married couples with the woman on the left.
Answer:
It's 90
Step-by-step explanation: