A company produces very unusual CD$\text{'}$s for which the variable cost is $$17$ per CD and the fixed costs are $ $20000.$ They will sell the CD$\text{'}$s for $$57$ each. Let $x$ be the number of CD$\text{'}$s produced.

Write the total cost $C$ as a function of the number of CD$\text{'}$s produced.

$C(x)=$$

Write the total revenue $R$ as a function of the number of CD$\text{'}$s produced.

$R(x)=$$

Write the total profit $P$ as a function of the number of CD$\text{'}$s produced.

$P(x)=$$

Find the number of CD$\text{'}$s which must be produced to break even.

The number of CD$\text{'}$s which must be produced to break even is