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February 21st, 2009, 11:49 AM   #1
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CAN SOMEBODY HELP SOLVE THIS PROBLEMS PLEASE

A radio manufacturing firm has fixed cost of $25.000 cost and variable cost of $75.80 per radio. The radio sells for $119.95
Write an expression for the profit funciton and find the number of radios that must be sold to break even.


If money is invested at 9%, what is the effective anual rate if the investment is compounded
a) quarterly?
b) monthly?
c) daily?
d) countinesly?
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February 21st, 2009, 06:02 PM   #2
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What progress have you made so far?
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