Answer:
P = 2x + 2y + 10
Explanation:
Given the following data;
Length of rectangle = x + 6
Width of rectangle = y - 1
To find the perimeter of the rectangle;
Mathematically, the perimeter of a rectangle is given by the formula;
P = 2(L + W)
Where;
Substituting into the formula, we have;
P = 2(x + 6 + y - 1)
P = 2(x + y + 5)
P = 2x + 2y + 10