What sorts of speed limits do they have in Aus? When I was there there was a mix of 2 lane roads and divided highways which looked similar to interstates once I

What sorts of speed limits do they have in Aus? When I was there there was a mix of 2 lane roads and divided highways which looked similar to interstates once I was outside of the city but I wasn’t driving. For context, 100-110km/h is how fast you’d safely go on the 2 lane roads and 130km/h on rural divided highways in the US (maybe even 140km/h in really flat states).