To estimate the unit rate, we should round the 5.79 to 6. This makes it much simpler to solve as 6 is a multiple of 12. The unit rate, in this case, is the price of 1 pair of socks. We can find this by dividing both the price and pairs of socks by 12. When we do this, we can see that each pair of socks is approximately $0.50.
