Anna and Carol buy CDs and tapes at a music store that sells each of its CDs for a certain price and each of its tapes for a certain price. Anna spends twice as much as Carol spends, buying three times as many CDs and the same number of tapes. If Carol spends $40.00 on four CDs and five tapes, how much does one tape cost? Choices.
A) $4.00  B) $6.25  C) $12.00  D) $25.00  E) $100.00
CD =&gt; C   Type =&gt; T   Carol: 4C+5T=40   $4.00nna: 12C+5T=80   12C-4C=40   8C=40   C=5   4C+5T=40   20+5T=40   5T=20   T=4   $4.00nswer is $4.00
<result>A</result>
Anna and Carol buy CDs and tapes at a music store that sells each of its CDs for a certain price and each of its tapes for a certain price. Anna spends twice as much as Carol spends, buying three times as many CDs and the same number of tapes. If Carol spends $40.00 on four CDs and five tapes, how much does one tape cost?