Answer:
Explanation:
A.)


256 + 400 =

656 =

25.6 = c
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B.)


625 + 100 =

725 =

26.9 = c
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C.)


144 + 100 =

244 =

15.6 = c
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D.)


676 + 576 =

1,252 =

35.4
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Sry it takes a lot of time to put in these equations and all that
Hope it helped!