<u>Answer:</u> It is not scale copy (given)
<u>Step-by-step explanation:</u>
Rectangle B: 15 by 10
Rectangle C: 30 by 15
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<u>First way:</u> Compare the ratio among themselves
Rectangle B: 15:10=3:2
Rectangle C: 30:15=2:1
Apparently, the two side ratios are not the same, thus it is not scale copy
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<u>Second way:</u> Compare the ratio between the two.
Length: Rectangle B:Rectangle C=15:30=1:2
Width: Rectangle B:Rectangle C=10:15=2:3
1:2≠2:3
Thus, Rectangle C is not a scaled copy of Rectangle B