3) Company produces very unusual CD's for which the variable cost is $ 9 per CD and the fixed costs are $ 30000

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3) Company produces very unusual CD's for which the variable cost is $ 9 per CD and the fixed costs are $ 30000. They will sell the CD's for $ 70 each. Let x be the number of CD's produced.
Write the total cost C as a function of the number of CD's produced.
C=$_______________.

 

Write the total revenue R as a function of the number of CD's produced.
R=$ _____________________.

 

Write the total profit P as a function of the number of CD's produced.
P=$____________________.

 

Find the number of CD's which must be produced to break even.
The number of CD's which must be produced to break even is ______________.

 

4) A baseball team plays in a stadium that holds 62000 spectators. With the ticket price at $11 the average attendance has been 27000. When the price dropped to $10, the average attendance rose to 31000.

Find the demand function p(x), where xx is the number of the spectators. (Assume p(x) is linear.)

p(x)=________________.