Answer:
7 1/2 feet
Step-by-step explanation:
Area of the Mural painted wall = 112 1/2 sq.feet = 225/2 sq.feet
width * length = 225/2
15 * length = 225/2
[tex]length=\frac{225}{2*15}\\=\frac{15}{2}\\\\=7\frac{1}{2}[/tex]
