A local bookstore is keeping a database of its customers to find out more about their spending habits and so that the store can start to make personal recommendations based on past purchases. The first 5 lines of the database appear in the accompanying table. Complete parts (a) and (b) below. Click the icon to view the data table. X Data table Transaction ID Customer Date ISBN Number | Price Coupon? Gift? Quantity ID of Purchase 28784320912 4J434 11 / 15/2009 345-27-2358 $39.95 26483589099 3K726 9/27 / 2009 983-89-2733 $18.99