My Math Forum CAN SOMEBODY HELP SOLVE THIS PROBLEMS PLEASE

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 February 21st, 2009, 10:49 AM #1 Newbie   Joined: Feb 2009 Posts: 2 Thanks: 0 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?
 February 21st, 2009, 05:02 PM #2 Global Moderator   Joined: Dec 2006 Posts: 19,708 Thanks: 1805 What progress have you made so far?

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