Is it a multiple choice question
The cost of the mp3 player after the discount is $27.98.
<h3>
What is percentage?</h3>
A percentage is a number or ratio that can be expressed as a fraction of 100. If we have to calculate percent of a number, divide the number by whole and multiply by 100.
Given
An mp3 player is on sale for 30% off the regular price of $39. 98.
The price of the mp3 player after the 30% is given
The cost of mp3 player after 30% discount is;
= $39.98 - $11.99 = $27.98
Hence, the cost of the mp3 player after the discount is $27.98.
To know more about percentage click the link givem below.
brainly.com/question/9776399
The solutions are
1. If A=B implies c = then A ∪ B = B
<span>2. If B is inside A </span><span>e = then A ∩ B = B
</span>3. A ∪ Ø implies d = A
4. A ∩ Ø imiplies <span>a = Ø
</span>5. B ∪ Ø implies b = B