$\"\"$

The volume of the prism is $\"\"$

The values of rectangles are given by length 3 mm,width 5 mm and height 15 mm.so, use the area of the rectangle to find B.

Area of a rectangle is $\"\"$ . So, $\"\"$ .

$\"\"$ (Substitute 3 for l 5 for w)

$\"\"$ (Multiply: $\"\"$ ) $\"\"$

$\"\"$ (Apply Formula for volume of a prism)

$\"\"$ (Substitute 15 for B 15 for h)

$\"\"$ (Multiply: $\"\"$ ) $\"\"$

The volume of the prism is $\"\"$ .