Miss E. ordered a quilt from an online store .

No matter what she orders , since she is buying online , she has to pay a delivery fee of $12 .

Then she also has to pay another fee of $0.10 per yard of yarn.

1) Write an equation for this situation. Use x to represent the number of yards of yarn and y for the total cost .

2) How much will it cost for a quilt that uses 4000 yards of yarn ?