Answer:
12
Step-by-step explanation:
a = 2
b = 3
c = 9
a(c - b)
2(9 - 3)
2(6)
Use a(c-b).
Plug 2 for a, b for 3, and c for 9.
2(9-3)
And solve.
2(6)=12 is the answer.