Answer :

825349

Answer:

Step-by-step explanation:

3*7*10*10*10*10*10*10*10

(5+2=7)(since is multiplication you add)

21*[tex]10^{7}[/tex]=B

2*10*10*10*10*10

4*10*10

(5-2=3)(since is division you subtract)

0.5*[tex]10^{3}[/tex]=c

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