Answer:
x^2+10x+16
Step-by-step explanation:
Plug in the values
h=x+8
b=2x+4
A=1/2(2x+4)(x+8)
A=(x+2)(x+8)
FOIL: x^2+8x+2x+16
A=x^2+10x+16
Answer: the first diagram
The shaded region of 2 rows is 40%
While the unshaded region on 3 rows is 60%
$80.22
