Answer: The answer would be 55 square feet.
Explanation: To make it easy, placing the bed frame in one of the bottom corners will leave us with 2 shapes. The piece right next to the bed frame will have a width of 3 and a length of 5, resulting in the area of that shape to 15 square feet. The rectangle above the bed frame with have a width of 8 and a length of 5, resulting in the area being 40 square feet. If you add those 2 numbers together, 40 + 15, you will have 55 square feet.