<u>The error is that they had placed the numbers in the wrong placeholder.</u> Remember that the Distance formula is
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<em><u>Correct Work:</u></em>

7.4 is your final answer, hope that help, one decimal place is the first number after the decimal.
60%
Solve by creating a proportion
27/45 = x/100
Cross multiply to get 2700=45x
Divide 45 on both sides to get x=60
24 = 24 cents. 62 nickels= multiply that by 5. 55 dimes= multiply that by 10. 16 quarters= multiply that by 25. 19 x 50 add together all solutions.