Associative property Says that you can add or multiply regardless of how the numbers are group
To solve this question, you would need to find the common denominator among the 2 fractions. In this case it would be
72.
Then multiply numbers to both of the fractions to get to the bottom number in both fractions equaling 72.
40/72 + 27/72 =67/72.
Try to reduce to lowest terms by dividing a common number from both of them if possible.
Given:

To find:
The function
.
Solution:
we have,

Put g(x)=y.

Interchange x and y.

Isolate y.



Substitute
.



Therefore, the correct option is (3).
No. You can’t add the two lower numbers up to make the bigger number making them not a triangle.