The answer is 26mm, hope this helps!
1)
LHS:

LHS = RHS. So, the statement is true
2)
LHS:

LHS not equal to RHS. So, the statement is false
3)
LHS:

LHS = RHS. So, the statement is true.
4)
LHS:

LHS = RHS. So, the statement is true.
Answer:
4 I guess
Step-by-step explanation:
Because
3-1=2
2^2=2*2=4
You have to take the 2 divided by 12. And 12 divided by 2 is 6. So the answer is 6