15b is the answer to this question hope this was helpful
Answer:
The equation is:

And the solution is:

Step-by-step explanation:
Given
Represent Kiran with K and Tyler with T
Kiran score is represented as:

Also, Kiran scored 223 less than Tyler.
This is represented as:

Substitute 409 for K

Make T the subject


The answer is 9.5% by simply diving 2000/210
K is 'angle bisector' because it seperated the angle's center.
Hope it helps!
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