Verified Answer :

naǫ

\(10|7-x| \hbox{ when } x=5 \\ 10|7-5|=10|2|=10 \times 2=\boxed{20} \Leftarrow \hbox{answer B}\)

Panoyin

10|7 - x|
10|7 - 5|
10|2|
10(2)
20

B.20

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