I think is 35cm2 hope it will help you
Answer:
2/5
Step-by-step explanation:
start by 8*5 then 10 times 10 then simplify
S2= 864/6
s = = 12 cm
p = 4/3 x 12 = 16 cm
t = 2/4 x 16 = 8 cm
l= 3/4x 16 = 12 cm
lp= 2 (pl+pt+lt)
= 2 (16 x 12 + 16 x 8 + 12 x8)
= 2 (192+128+96) = 832cm²
<h3>
Answer: 96</h3>
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Work Shown:

8n-(2n-3)=12
8n-2n+3=12
6n=12-3
6n=9
n=9/6=3/2