All the listed taffetas are 60 inches wide, and with the exception of the stripes are 100% acetate.
All but the black and white plaid taffeta are heavyweight.
They are all crisp taffetas that will hold their shape rather than drape softly.
The black and white plaid taffeta is a mid-weight and is $6.50 per yard, rather than the $7.50 per yard for all the others.
Shipping weights are the same for all of them.
Shipping: 3 yards equals one pound, so would be $6.00 for one to three yards for Priority Mail. Four to six yards would be $9.00, seven to 9 yards would be $12.00, and eight to 10 yards would be $15.00.
Might be able to do flat rate shipping for more than 9 yards, but would need to check.