1.

Simplify : 1+121−12÷47(23+310)of 12+1312−131+121−12÷47(23+310)of 12+1312−13

A. 23232323232323232323223323
B. 3712371237123712371237123712371237121211223712
C. 32323232323232323232332232
D. 1338133813381338133813381338133813383833881338
Answer» B. 3712371237123712371237123712371237121211223712


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