Trevor's stack of books is $$7\frac{7}{8}$$ inches tall. Rick's stack is 3 times as tall. What is the difference in the heights of their stacks of books?

It take $$8\frac{3}{4}$$ yards of fabric to make one quilt. Gail needs three times as much fabric to make three quilts. She already has two yards of fabric. How many more yards of fabric does Gail need to buy in order to make 3 quilts?

Brandon drove $$72\frac{7}{10}$$ miles on Monday. He drove 3 times as far on Tuesday. How far did he drive on the two days?

Ground turkey is sold in packages of $$2\frac{1}{2}$$ pounds. Dawn bought eight times as much turkey that is sold in 1 package for her son's birthday party. How many pounds of turkey did Dawn buy?