From 2005 through 2014, the number of music CDs sold in the United States declined each year by approximately 15% of the number sold the preceding year. In 2005, approximately 600 million CDs were sold in the United States. Of the following, which best models $C$, the number of millions of CDs sold in the United States, $t$ years after 2005?

Question

Accepted Answer

$C = 600(0.85)^{\dagger}$

Answer

$C = 600(0.15)^{\dagger}$

Answer

$C = 600(1.15)^{\dagger}$

Answer

$C = 600(1.85)^{\dagger}$