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Unformatted text preview: Sol: TR = 50 x TC = 100,000 + 20,000 + 20 x + 15 x = 120,000 + 35 x Profit = TRTC = 50 x (120,000 + 35 x ) = 15 x 120,000 b. What is the breakeven point? (Writing a fraction is fine) Sol: Breakeven point: TR=TC 15 x = 120,000 x = 120,000/15 2. You deposit $10 in a bank account paying 10% simple interest per year. How much would you have at the end of 10 years? Sol: Simple interest : 1 + = 10 1 + 10 0.1 = 20...
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 Spring '08
 Vincent,G

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