Answer: The cost would be $1782 and $3582 respectively.
Explanation:
Since we have given that
Number of MP3 players = 18
Number of CD/MP3 = 18
Cost of each MP3 = $99.00
Cost of each CD/MP3 = $199.00
So, the Cost of 18 MP3 would be
![18* 99\\\\=\$1782](https://img.qammunity.org/2020/formulas/mathematics/middle-school/pl9fq23drtc2m1uq8ittp617346frn1j9n.png)
And, the cost of 18 CD/MP3 would be
![199* 18\\\\=\$3582](https://img.qammunity.org/2020/formulas/mathematics/middle-school/kijcx4kulsdsfnmf1hib3u6d2aj62dmiw3.png)
Hence, the cost would be $1782 and $3582 respectively.