Answer:
P = 10 +2x . . . . . (units are inches)
Step-by-step explanation:
It is appropriate to use the formula for the perimeter of a rectangle, filling in the given values.
P = 2(L + W) . . . . . the perimeter is twice the sum of length and width
P = 2(5 + x) . . . . . .filled in with the givens
P = 10 + 2x . . . . . simplify
