Answer:
Guys for this one the 30, 20, 5 is 1700
Explanation:
= 1700 :)
-multiply all the sides,
-add them,
- then double the answer (or times it by 2):
1) 30 times 20 = 600
30 times 5= 150
20 times 5 =100
2) Add them:
600+150+100 = 850
then times 850 by 2
850 times 2 = 1700
Hope that helped :)
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