Answer:
1) $30,000 + $12x
(2) $50x
(3) $38x - $30,000
(4) 790 CD's to break even
Given that,
Variable cost = $12 per CD
Fixed cost = $30,000
Selling price = $50 each
Let x be the number of CD's produced,
(1) Total cost function:
C(x) = Fixed cost + Variable cost
= $30,000 + $12x
(2) Total revenue:
R(x) = Units produced × selling price of each unit
= $50x
(3) Total profit:
P(x) = R(x) - C(x)
= $50x - ($30,000 + $12x)
= $50x - $30,000 - $12x
= $38x - $30,000
(4) Number of CD's which must be produced to break even:
Total profit = 0
$38x - $30,000 = 0
x = $30,000 ÷ $38
= 789.47 or 790 CD's to break even.
Hope this helps! :)