Tablecloth = 102 * 54 = <<102*54=5508>>5508 square inches
Napkins = 8 * (6 * 7) = <<8*(6*7)=336>>336 square inches
5508 + 336 = <<5508+336=5844>>5844 square inches
Sally will need 5844 square inches of material to make the tablecloth and 8 napkins.
#### 5844