Final answer:
The correct expression that represents the perimeter of the triangle is option 2) 9v-7w + 7v+10x + 8x+5w.
Step-by-step explanation:
The correct expression that represents the perimeter of the triangle is option 2) 9v-7w + 7v+10x + 8x+5w.
To find the perimeter of a triangle, you need to add the lengths of all three sides. In this case, the three side lengths are (9v-7w) centimeters, (7v+10x) centimeters, and (8x+5w) centimeters. Adding these lengths together gives us the expression in option 2).