B.16 because 800 divided by 50 is 16
Arithmetic sequences have a common difference (addition)
geometric sequences have a common ratio (multiplication)
If a polynomial with real coefficient has a complex zero, the conjugate of that number will be a zero as well.
So, if 4-6i is a zero, 4+6i will be a zero as well
If -2+11i is a zero, -2-11i will be a zero as well
So, the zeroes are
