Question

Help me which is right and which is wrong
$r {}^{3} \: proportional \: to \: {t}^{2} \\ \\ or \\ \\ {t}^{ {}^{2} } proportional \: to \: {r}^{3}$

Answer 1

the second one
according to Kepler law

Answer 2

when the sun is over the Tropic cancer the climate in Northern plains