All possibilities = 9!
possibilities that harry sits at an end = 8! + 8!
possibilities that harry doesn't sit at an end = 9! - 8! -8!
Do each equation individually and compare if they are the same end answer in each question. which ever one is unequal than that is the answer
Answer: 1,3,4
Step-by-step explanation:
Answer:

Step-by-step explanation:
Area of a rectangle is simply length times width
{
} * x would be the area
That can be simplified to

Which can be further simplified to

Answer:
b = 15.7 -2a
Step-by-step explanation:
You are asking us to solve for b
2a +b = 15.7
Subtract 2a from each side
2a-2a+b = 15.7 -2a
b = 15.7 -2a