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Math·Problem-Solving and Data Analysis·Percentages

easy

The percent increase in mass of a certain red kangaroo from $110$ days old to $220$ days old was $971\%$. If this red kangaroo’s mass was $k$ grams at $110$ days old, which expression represents its mass, in grams, at $220$ days old?

A

$10.71k$

B

$9.71k$

C

$1.08k$

D

$0.08k$