Sum means addition . thus it is x+3,
Answer:

Step-by-step explanation:
Given


Required
Evaluate Blue when z = 9
To do this, we simply substitute 9 for z in 

Convert indices to fraction


<em>Hence, the blue section has an area of </em>
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Question 5 and 6 are the same.
Try Socratic hope that helps
Take 40 and multiply it by any number bigger than 2 then add 4.
124,164,204