How many variables are measured on each row?______________(Type an integer or a decimal.)

Data table Transaction ID 29784320917 36483689001 36483589002 36429489306 36429489307 ustome 4J434 3K726 3K726 30036 30036 Date 11/15/2009 9/29 / 2009 9/29/2009 12/5/2009 12/5/ 2009 ISBN Number of Purchase 345-28-2352 839-91-2740 102-57-2339 295-40-5885 223-43-2963 Price $2595 $16 99 $7.95 $34 00 $7995 Coupon? N N Gift? N N Quantity