Answer:
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Step-by-step explanation:
Answer:
<h2>The width is (2x + 5) or (x - 3)</h2>
Step-by-step explanation:
The formula of an area of a rectangle:

l - length
w - width
We have


We gots triangle and half circle
square is meaning all sides are 20
that means height and base are 20 (isocelese)
and diameter is 20
area triangle=1/2bh=1/2(20)(20)=200
square=side*side=20*20=400
semicircle=1/2*pir^2
d/2=r, 20/2=r=10
semi=1/2*pi*10^2=1/2*pi*100=50*pi
using aprox pi=3.141592
semi=157
add them all
200+400+157=757
G is answer