https://prnt.sc/s6nkm3
am i correct ?
arithmetical series \(16,\ 7.5,\ -1,\ -9.5,\ -\ldots \)arithmetical series \(16,\ 16-8.5,\ 16-2*8.5,\ 16-3*8.5,\ \ldots \ \text{common difference = -8.5}\)
