Answer:
42
Step-by-step explanation:
the answer is 42
12-6+(14-8)^2
12-6(6)^2
12-6+36
=42
11,15,19,23,27,31,35,39,43,47,51,....
A=12in²
b Base 8in
hb Height 3in
A=hbb
2=3·8
2=12in²
