At a POW-wow in Arizona, Native Americans from all over the Southwest come to participate in the ceremonies. Some brought food, some brought costumes, and some brought jewelry and other crafts to sell. A coordinator of the POW-wow took a survey of the 75 participants and found that.
25 families brought food and jewelry; 12 families brought food only 20 families brought costumes and food. 13 families brought costumes only. 21 families brought costumes and jewelry 4 families brought jewelry only 10 families brought none of the three items.
What would all the different regions in the venn diagram be?