Answer:
From least to greatest in cost is Red, Brown, Purple, Silver.
Explanation:
Ebba is buying bulk fabric and shopping for best deal, in order to calculate best deals of fabric we calculate per square yard of each fabric.
Purple : 6.5 square yard = $6.25
Therefore 1 square yard = 6.25 ÷ 6.5 = $0.96
Red : 4 square yard = $3.00
Therefore 1 square yard = 3.00 ÷ 4 = $0.75
Brown : 8.5 square yard = $8.10
Therefore 1 square yard = 8.10 ÷ 8.5 = $0.95
Silver : 6 square yard = $7.20
Therefore 1 square yard = 1.20 ÷ 6 = $1.20
Now we arrange the fabric in order from the least to the greatest unit cost in dollars per square yard.
Red, Brown, Purple and Silver.