Answer:
B. b(a) = a/6 -9
Step-by-step explanation:
Solve the given equation for b.
a = 12(b +9)/2
a = 6(b +9) . . . . simplify
a/6 = b +9 . . . . divide by 6
a/6 -9 = b . . . . subtract 9
Then the inverse relation is ...
b(a) = a/6 -9 . . . . . . . matches choice B
