Answer:
Step-by-step explanation:
1.
Area of shaded region = Area of external rectangle - Area of internal rectangle

2.
Let the width of the rectangle be x inches.
Therefore, length of the rectangle = (x + 3) inches
A.
Area of rectangle
B.
Width of rectangle = 4 inches
Length of rectangle = 4 + 3 = 7 inches
Area of rectangle = 7*4 = 28 square inches.
Y = -4x + b
60 = -4(5) + b
solve b
<span>60=−4(5)+b</span><span>60=−20+b</span><span>60−(−20)=b</span><span><span>80=b</span></span>
Area of windows = (3×4×5)
= 60
area of wall = 8×18
= 144
=(60÷144)×100
=0.4167 × 100
=41. 67% or
=42 %
Answer: 383.3
Step-by-step explanation:
Opposite over adjacent
Answer:
b
Step-by-step explanation:
you can move the negative around