Answer:
B. 9
Step-by-step explanation:
number 0
The number 0 is a whole number but not a natural number. But we can say that natural numbers contain all the whole numbers except the number 0.
b = 2
3b1b-8 = 4
+8 +8
3b1b = 12
3b^2 = 12
/3 /3
b^2 = 4