If 18$2 = 10, 8$4 = 6 and 12$18 = 15, then find the value of 7$9 = ? – McqOptions

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1.	If 18$2 = 10, 8$4 = 6 and 12$18 = 15, then find the value of 7$9 = ?
A.	12
B.	20
C.	8
D.	18
Answer» D. 18

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