A regular octagon means that each of the 8 sides are equal. So, each side is 20 inches. To find the total amount of wire, you just find the perimeter:
8 * 20 = 160 inches of wire
It is important to note that since this is a regular shape, all sides are equal, which means that the perimeter is proportional to the side lengths.
Answer:
T is 17
Step-by-step explanation: 14 minus 14 is 0 and you add the extra 3 to become -3. so the answer is 17
Answer:

Step-by-step explanation:
remember the property

then u get equation with same base