Answer :

To express the fraction [tex]\(\frac{17}{20}\)[/tex] as a percentage, we need to follow these steps:

1. Understand the Fraction: The fraction [tex]\(\frac{17}{20}\)[/tex] represents a part of the whole, where 17 is the numerator (part) and 20 is the denominator (whole).

2. Convert the Fraction to a Decimal: Divide the numerator by the denominator:
[tex]\[ \frac{17}{20} = 0.85 \][/tex]

3. Convert the Decimal to a Percentage: To convert a decimal to a percentage, multiply the decimal value by 100:
[tex]\[ 0.85 \times 100 = 85 \][/tex]

Therefore, [tex]\(\frac{17}{20}\)[/tex] as a percentage is [tex]\(85\%\)[/tex].

So, the correct choice is:
[tex]\[ \boxed{85\%} \][/tex]