Arithmetic Sequences, in Depth

$5$, $7$, $9$, $11$, $13$

$\frac14$, $\frac12$, $\frac34$, $1$, $1.25$

$\frac18, \frac16, \frac14, \frac12$

$-0.9$, $-0.75$, $0.25$

$3.333\dots$, $4.444\dots$, $5.555\dots$, $6.666\dots$