Use the fact that there are $12$ inches in a foot to answer the questions below.

1. How many inches tall is a $7$-foot basketball player?

   Hint (a):

   The player is seven times taller than one foot.

   Answer (a):

   $84$ inches

2. If a yard is $3$ feet long, how many inches are in a yard?

   Answer (b):

   $3(12)=36$ inches