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Juli2301 [7.4K]
3 years ago
13

18= r/2 Find out what are is

Mathematics
2 answers:
Roman55 [17]3 years ago
6 0
18=r/2
Multiply by 2 on each side, 
36=r
r=36
Hope this helps. 
Zanzabum3 years ago
4 0
R = 36 because if you multiply 18 and 2, it gives you 36. If you check it to see if it's correct, then you would divide 36 by 2 to get 18.
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