Final answer:
The expression for the perimeter of the triangle is 4.1x + 29.
Step-by-step explanation:
The formula for the perimeter of a triangle is the sum of the lengths of its three sides. In this case, the expression given is 2.3x + 14 + 2x - 0.2x + 15. To find the perimeter, we simply simplify the expression by combining like terms:
Perimeter = 2.3x + 2x - 0.2x + 14 + 15
Perimeter = 4.1x + 29
So, the expression for the perimeter of the triangle is 4.1x + 29.