Answer:
Step-by-step explanation:
P=2l + 2w is the formula for the perimeter of a rectangle of length l and width w.
If the length, l, is 30, then the perimeter is
P = 2(30) + 2w, or
P = 60 + 2w
This is the general formula for the perimeter of lenth 30. Note that the width could have any value from 0 to infinity.
If you want a specific perimeter, you must specify the value of the width, w.
