I'm guessing you'd combine them. And the end equation would be
81x6y
You can find the circumference of the circle with the circumference equals 2pir.
circumference=2pi9
circumference=18pi
circumference=56.55 feet
you can then turn the feet into inches by multiplying by 12
(56.55 feet)x(12inches/foot)=678.58 inches
then divide 678.58 inches by 54 inches to find how many light strands are needed.
(678.58 inches)/(54 inches/strand)=12.57 strands
The probability is really little because a shuffle will shuffle it in a mix order which makes it a really little chance for it to be in alphabetical order
355 ~ 350
102~ 100
350
- 100
= 250
