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    15-1                               Read pp. 497-501            

                                                    Q/1,4,6,7

                                                    P/1,2,7,8

     

    15-2                               Read pp. 503, Ex. 15.2 & 15.3       

                                                    P/4,10,11,15

     

    15-3                               Read pp. 505-507      

                                                    Q/8,9

                                                    P/17,18a,20,24,27

     

    15-4                               Read pp. 510-511, 515-516   

                                                    Q/16,17,19,20

                                                    P/28,29,30