Answer:
Option D. 384 square feet.
Explanation:
Nancy is going to do some painting in her room.
The length of room = 13 feet
the width of room = 11 feet.
The room has 4 walls of 2 (11 feet) and 2 (13 feet) and the height of the wall is 8 feet.
The total area of the walls = 2( 11 × 8 + 13 × 8 )
= 2 ( 88 + 104 ) = 2 × 384 = 384 square feet
Nancy would paint total 384 square feet.