Answer:
Yes, she has enough paint, since she does not need to paint the window. The area that needs to be painted is only 87 ft², and she has enough paint for 90 ft².
Explanation:
Area of the wall (including window)
= 12 x 8
= 96 ft²
Area of the window
= 3 x 3
= 9 ft²
Area of the wall that needs to be covered with paint
= 96 - 9
= 87 ft²