If 8a = 9b and ab ≠0, what is the ratio of a/9 to b/8?
Choose one:	A) 64/81	B) 8/9	C) 1	D) 9/8	E) 81/64
if ab ≠0   then a and b has two integer sets of pair   if a=9 then b=8   and if a=-9 then b=-8   also in fraction if a=1/8 then b=1/9   any of the pair we check the ratio 8a/9b=1   ANSWER:1
<result>C</result>
If 8a = 9b and ab ≠0, what is the ratio of a/9 to b/8?