Answer:
B) No, three of the percentages would round up to 20%.
Explanation:
By looking at the table substance B = 19.9%
When we round to the nearest whole number percent, we get
Substance B = 20%
Substance A = 19,.6% = 20% (Rounded to whole percent)
Substance C = 19.5% = 20% (Rounded to whole percent)
Here the 3 substances rounded to the same percent.
Therefore, answer is B) No, there of the percentages would be up to 20%.
Hope this will helpful.
Thank you.