In the drawing below, QS bisects ZPQR,PO = 9 units, PS4 units, and RS-3 units. What is OR in units?
O A 21
O B. 12
O C. 8
o D. 6 3/4


In the drawing below, QS bisects ZPQR,PO = 9 units, PS4 units, and RS-3 units.

What is OR in unit

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