Ted is helping his father plant their vegetable garden this year. They will put a fence around the garden. Ted measures the length of the garden, which is 6 feet. His father tells him that the width is twice the length. How much fencing do Ted and his father need to buy yo enclose the garden?

6 * 2 = 12

P = 2L + 2W

P = (2 * 6) + (2 * 12)

P = ?

To determine how much fencing Ted and his father need to buy to enclose the garden, we need to find the perimeter of the garden.

First, let's find the width of the garden. Ted's father says that the width is twice the length, so we multiply the length by 2:
Width = 2 * Length = 2 * 6 feet = 12 feet

Now, to calculate the perimeter of the garden, we need to add up all the sides. Since the garden is rectangular, the perimeter is 2 times the sum of the length and width:
Perimeter = 2 * (Length + Width) = 2 * (6 feet + 12 feet) = 2 * 18 feet = 36 feet

Therefore, Ted and his father need to buy 36 feet of fencing to enclose the garden.