Hello, sorry this is a little late, but perhaps it will help others who visit this question!
I believe the best answer would be option three, exponential. I can confirm this is 100% correct.
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Answer:
look to rule number five
Step-by-step explanation:
Rule Number 5 best explains the answer
<em>Hey</em><em>!</em><em>!</em><em>!</em><em>!</em>
<em>Here</em><em>'s</em><em> </em><em>your</em><em> </em><em>answer</em>
<em>The</em><em> </em><em>missin</em><em>g</em><em> </em><em>factor</em><em> </em><em>is</em><em> </em><em>(</em><em>2</em><em>n</em><em>^</em><em>2</em><em>-</em><em>4</em><em>)</em>
<em>Hope </em><em>it</em><em> </em><em>helps</em><em>.</em>
<em>Good</em><em> </em><em>luck</em><em> </em><em>on</em><em> </em><em>your</em><em> </em><em>assignment</em>
(3/5+1/4) x 2/3 is equal to 0.56666666 or 17/30