Proportionate Reasoning

What do these equations tell us$?$

Equations:

$T=2\sqrt[\phantom{2}]{\frac{m}{k}},T=2\sqrt[\phantom{2}]{\frac{L}{g}},T=\frac{1}{f}$

Proportionate reasoning:

Mass on spring: If m is $9$ times bigger, T is

Mass on spring: If $k$ is $9$ times bigger, T is

Pendulum: If $L$ is $9$ times bigger, $T$ is

Pendulum: If g is $9$ times bigger, T is

If period is $5$ times bigger, frequency is

If frequency is $5$ times bigger, period is

$($Try this with other equations you have learned.$)$