Answer:
the answer is letter D
Step-by-step explanation:
11,15,19,23
an = 11 + 4(n-1)
an = 11 + 4n - 4
an = 4n + 7
Answer:
It is an octagon if and only if it has eight sides.
Step-by-step explanation:
Are there any other things that cost money that are in the equation?