It is 2.0
Most schools teach you to always round 5 up. However, doing so is inappropriate because it introduces an upward bias. The IEEE (Institute of Electronic and Electrical Engineers) standard 754 is to round 5 up or down so that the new last digit is even. See link for more: //en.wikipedia.org/wiki/Rounding#Round_half_to_even
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To convert a fraction to a decimal, you divide the numerator by the denominator. In this case, 13 divided by 205 equals 0.063414634146. Rounded to four decimal places, 13/205 as a decimal is approximately 0.0634.
To convert a decimal to a percentage, you multiply by 100. Therefore, 2.05 as a percentage would be 205%. This is because 2.05 is equivalent to 205/100, which is 205%.
The decimal 13.5 is already rounded to one decimal place.
It is then 9.3 when rounded to one decimal place
0.086 rounded to one decimal place is 0.1.