ANSWER

EXPLANATION
The diagram represents the net of a rectangular prism.
The dimensions are,


and

The total surface area of a rectangular prism is given by:

We substitute the values to obtain,


Answer:
ok the answer is: p=-4
Step-by-step explanation:
First you distribute 3 times p-4 and get 8-3p+12=2p then you add 12 plus 8 and get 20 then you have 20-3p=2p you have to add 3p on both sides and you get 20= -5p you divide and get p= -4
B is the answer i hope it helps i