Respuesta :
idk if this is what you're looking for at all but the 9th number in that sequence would be 54
an = a1 + (n – 1)d
a1 is the first term
d is the difference
an = nth term
so
an = 14 + (n – 1)5
a1 is the first term
d is the difference
an = nth term
so
an = 14 + (n – 1)5