$\"\"$

\

Surface area of a prism: $\"\"$ .

\

Solve $\"\"$ for h.

\

Subtract 2B from each side.

\

$\"\"$

\

$\"\"$

\

Divide each side by P.

\

$\"\"$

\

Cancel common terms.

\

$\"\"$ . $\"\"$

\

The value of $\"\"$ .