The length of a rectangle is 4 cm less than twice the width. express as an integer the maximum width of the rectangle when the perimeter is less than 78 cm.
N and n+2 because if n=1 then you do 1+2 and that equals 3. So then you have 1,3
It goes in 5 times but with 1 remainder
All possibilities = 9!
possibilities that harry sits at an end = 8! + 8!
possibilities that harry doesn't sit at an end = 9! - 8! -8!
