Answer:
b. 4(x + 6) = 49
Step-by-step explanation:
Step two:
given data
A quadrilateral has a side length L of x+6 inches
Perimeter= 49 inches.
Required:
the expression for the perimeter of the  quadrilateral given the situation
Step two:
A Â quadrilateral has four sides, assume we have a square-shaped quadrilateral
P=4L
49= 4(x+6)