Each of the diagrams below represents tightrope moves for an acrobat. For each diagram:  

• Describe what the diagram shows about the routine and the length of the tightrope.

• Figure out the length of the acrobat’s trick.

1. 

   Hint (a):

   This is similar to writing an expression for an acrobat's routine. Think of the tricks as being numerical lengths of the rope.

   Step 1 (a):

   First, describe the routine based on the diagram.

   Partial Answer 1 (a):

   The acrobat performs a trick three times and then walks $10$ feet to get to the end of the $28$ foot tight rope.

   Step 2 (a):

   Next, determine how far each trick travels. Looking at the tightropes, the $3$ $n$'s match up with $18$ feet. Since $3$ unknown, but equal, lengths combine to make $18$ feet, you know that each length is $6$ feet.

   

   Partial Answer 2 (a):

   The trick travels $6$ feet.

2. 

   Hint (b):

   Follow the same steps as in part (a).