Answer:

Step-by-step explanation:
Given
The attached functions
Required
Find f(9)
We have:

So:



Answer:
20 inches
Step-by-step explanation:
It is because QS and PN are congruent.
Answer: B
Step-by-step explanation:
We know N cannot be 0 as the value would not be negative.
We know N cannot be negative as that would make the expression positive.
B is the only answer that works.
B. 12/24 is not equivalent because that is equal to 1/2 and 1/2 does not equal 8/20