Answer:
48 yards
Explanation:
Hey there!
To find the answer, we must first find how much yards of yarn she needs for 1 quilt
we do, 40/10 which is 4
Meaning, she needs 4 yards of yarn to make 1 quilt
Now we multiply 4 by 12 since we are making 12 quilts
4 x 12 = 48
So, Natalie needs 48 yards of yarn to make 12 quilts