15. An irregular pentagon has side lengths of (x + 3), (2x - 4), (4x + 5), (3x – 1), and x. Which simplified expression represents the pentagon's
perimeter?
A 11x - 3
B 24x + 60
C 11x + 3
D -9x + 3

A. 11x-3

Step-by-step explanation:

perimeter=sum of all sides

=(x+3)+(2x-4)+(4x+5)+(3x-1)+(x)

= 11-3

arrange the equations with like terms in columns.

analyze the coefficients of x or y.

add the equations and solve for the remaining variable.

substitute the value into either equation and solve.

check the solution.

step-by-step explanation: