Answer:
its c 21,14 because if u expand the cahart then those two numbers will be a pair
Change it into improper fraction to make it easier or just solve it as is.
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OR
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divide it to two parts:
3-2=1 and

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⇒(1×8-2=6)
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The answer to your question is C
3.2-5.7=-2.5 so its have to be a negative because a smaller number subtract a bigger number have to be equal to a negative number.
3% is the interest so you would do 3% of the investment plus the original investment so 3%×I=z and then z+I=the answer. sorry if this didnt help I'm new and I tried my best sorry!