Answer:
i cannt see it
Step-by-step explanation:
Answer:
It is B. 15 because the formula for this is 2 (l+w) 15+6=21 21*2=42
Let's try addition
3-9=-6
-6+18=12
12-8=4
4+16=20
doesn't seem to be a pattern
try mulitpcation
3 times -2=-6
-6 times -2=12
12 times 1/3=4
4 times 5=20
can't see a pattern
dunno what the patttern is
unless you mistyped th equestio