Answer:
2
Step-by-step explanation:
Dividing by fractions is the same as multiplying by its reciprocal. So 8/6 divided by 4/6 is the same as 8/6 times 6/4
You can then solve this two ways.
1) Multiply like normal and simplify:
(8/6)(6/4) = 48/24 = 2.
2) Since there is a 6 in both the numerator and denominator, they cancel each other out. This leaves you with:
(8/1)(1/4). Multiply across like normal to get 8/4 = 2.
I’m pretty sure it’s B because you can put in any number and it could still have a difference of 1
Using the concept of probability and the arrangements formula, there is a
0.002 = 0.2% probability that the first 8 people in line are teachers.
----------------------------------
- A probability is the <u>number of desired outcomes divided by the number of total outcomes.</u>
- The order in which they are positioned is important, and all people will be positioned, and thus, the arrangements formula is used to find the number of outcomes.
The number of possible arrangements from a set of n elements is given by:

----------------------------------
The desired outcomes are:
- First 8 people are teachers, in <u>8! possible ways.</u>
- Last 4 are students, in <u>4! possible ways.</u>
Thus, 
----------------------------------
For the total outcomes, <u>number of arrangements of 12 people</u>, thus:

The probability is:

0.002 = 0.2% probability that the first 8 people in line are teachers.
A similar problem is given at brainly.com/question/24650047