Answer:
1: 1/4 dollars or .25 dollars or 25%
2: 150 cents
3: 100 cents
4: 1/100 dollars, or 0.01 dollars, or 1%
Step-by-step explanation:
Well if you are looking for the profit margin we need how much is was when she bought it, because it doesn't say, you can't say It's a increase or a decrease, so you could say this is a investment.
But considering you put this under mathematics I assume there is more to this question you forgot to post.
64 dollars is the tax, the total cost would be $864.
Use this for percentages.
https://percentagecalculator.net/
54/4 = 13.5
take the 2 whole numbers below 13.5 and the 2 whole numbers above 13.5
12 + 13 + 14 + 15 = 54
It would be sometimes because it can be 82.2% but if you round it the closest one would be 80% if it was 84.7% its closer to 85 so it would be 85% I hope I helped you out rate the answer if I got it right thanks!