Answer:
As per the given statement: when the lights go out at the store at night there's a 15% off sign hanging out by the make up counter.
To find the number as a decimal and a fraction in simplest form.
Given the Number = 15%.
If we convert any number from percent to decimal divide by 100 and remove the % sign.

Then the given number in decimal is, 0.15
Now, to convert this percent into fraction;

Divide both numerator and denominator by 5 to get;

Therefore, the given number in fraction is;