The room is square, it means it has 4 walls with same dimentions. Let's calculate the area of one of them.

The total area is:

If we calculate now the area of each window and of the door, we just need to subtract these values from the total of the 4 walls to find the area that needs to be painted.

The area to be painted is:

To change it from m² to yd², we need to multiply it to 1.21, it is:

The answer is: 59.23yd²