worthy, Inc., produces and sells small electronic keyboards. Assume that you have the following information about Noteworthy's costs for the most recent month. Depreciation on factory equipment---------------------$800 Depreciation on CEO's company car----------------------100 Speakers used in the keyboard------------------------1,100 Production supervisor's salary--------------------------2,200 Glue and screws used in the keyboards------------------370 Wages of persons who install the speakers------------2,800 Cost to run an ad on local radio stations----------------600 Utilities for the factory----------------------------------1,200 Personnel manager's salary----------------------------2,500 Wages of person who attaches legs to keyboards---1,950 Calculate the prime cost for Noteworthy. (Omit the "$" sign in your response.) Prime cost:$_______