61, because 5*10 is the same, but as it's simplified it would be the correct answer, which makes 5x10^1 incorrect (it depends on who's teaching I suppose, but in my classes it was this way)
61, because 5*10 is the same, but as it's simplified it would be the correct answer, which makes 5x10^1 incorrect (it depends on who's teaching I suppose, but in my classes it was this way)
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