The length of fabric left on the rolls at JoAnne's Fabric Store is
yards
The steps used to find the number of yards of fabric left on the rolls are presented as follows;
Length of one of the rolls of Dallas Cowboys fabric =
yards
Length of the other roll of Dallas Cowboys fabric =
yards
Number of pillow cases Patricia is making = 4 pillow cases
Length of fabric each pillow case requires =
The total length of Dallas Cowboy fabric at JoAnnes Fabric Store =
yards
Length of 4 pillow cases =

Length of fabric left on the rolls, L, is therefore;
yards