About 6,271 people had viewed the video once it had been online for 20 days. The correct option is C.
<h3>What is exponential equation?</h3>
Exponential equation is the equation in which the exponent or part of exponents used as variables.

where, x is the number of days, given that x = 20
Putting the values in the equation

Thus, the correct option is C, 6,271.
Learn more about exponential equation
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The answer to that question is 4.52*10 23 power molecules
One was, synthetic fabrics
2.99x12 = 35.88
35.88+13.99
49.87
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