Verified Answer :

1) turn 20% into a decimal= 0.20 and now multiply it by 12.80 which is 2.56 and now subtract that by 12.80 which is 10.24 is your answer.
2)45%=0.45,  0.45200=90 and 200-90=110 is your answer
3)10%= 0.10, 0.1052.75=5.275 and 52.75-5.275=47.475 but you answe should be 47.47

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