Figure out statement and proof write them down in section 20 points

1. ∠1 ≅ ∠2               1. Given

2. ∠1 ≅ ∠3              2. Vertical Angle Theorem

  ∠2 ≅ ∠4            

3. ∠2 ≅ ∠3             3. Transitive Property refer to Statements 1 & 2

4. ∠3 ≅ ∠4             4. Transitive Property refer to Statements 3 & 2

x= cost per bracelet

number of bracelets * x + shipping charge = total cost

so

9x+9=72