Answer:
The answer to your question is Yes, she has enough paint.
Step-by-step explanation:
Data
base = 12 ft
height = 8 ft
window = 3 ft x 3 ft
Process
1.- Calculate the area of the wall
Area = base x height
Area = 12 x 8
Area = 96 ft²
2.- Calculate the are of the wall
Area = side x side
Area = 3 x 3
Area = 9 ft²
3.- Calculate the area that need to be painted
Area painted = Area of the wall - Area of the window
-Substitution
Area painted = 96 - 9
= 87 ft²
4.- Conclusion
She has enough paint to paint the wall (90 ft² > 87 ft²).
