Answer:
6
Step-by-step explanation:
If two secants are drawn from a point outside a circle, then product of one secant segment and its external part equal the product of the other secant segment and its external part.
(Secant-Secant Power Theorem)
(JG)(JH) = (JM)(JK)
(16) X (7) = (8+X)(8)
112=64+8X
8X=48
X=6
