The number of tiles at any stage can be described with the expression below:
aₙ = 2 + 4n
From the diagram the number of tiles increase by 4 . Therefore, the expression that describe this pattern can be gotten by using arithmetic progression.
Arithmetic progression formula
where
a = first term
d = common difference
n = number of terms
6, 10, 14
d = 10 - 6 = 4
a = 6
aₙ = 6 + (n - 1)4
aₙ = 6 + 4n - 4
aₙ = 2 + 4n
learn more on pattern here: https://brainly.com/question/21322373
