The answer is choice D because if you combine the like terms, you get 15-23i
i hope that helps!!!!
<span>Actually, yes there is. Being in the 80th percentile means that you are smart than 80% of the people (i.e. out of 100 people, you would be smarter than 80 of them). However being in the top 80% means that you are a part of the 80 smartest people out that same 100. </span>
Answer:

Step-by-step explanation:
Given



Required
Determine 
From laws of probabilities:

In this case:



here is the process hope it helps you