Plz i need this an expression for the perimeter of the triangle shown below: a triangle is shown with side lengths labeled 2.3x plus 14, 2x, and negative 0.2x plus 15.

The perimeter of the triangle:
P = a + b + c, where a, b, and c are sides of the triangle.
Here is:
a = 2.3 x + 14,  b = 3 x  and c = - 0.2 x + 15
P = ( 2.3 x + 14 ) + 2 x + ( - 0.2 x + 15 ) =
= 2.3 x + 14 + 2 x - 0.2 x + 15 = 4.1 x + 29
  The perimeter of the triangle is  4.1 x + 29