Answer:
10 + 5x
Explanation:
The perimeter is the length of all of the sides added together. In this case we are given a pentagon with numerical and non-numerical values but still the same principal applies in find the perimeter as you have to add all the sides together so
Perimeter = 5 + 5 + 2x + 2x + x
→ Simplify
Perimeter = 10 + 5x
So the perimeter of this pentagon is 10 + 5x