What is the unit rate for hours 1 2 3 4 5 earnings 10 20 30 40 50

The unit rate for earnings would be found by dividing the earnings by the corresponding number of hours.

The unit rate for earnings from hour 1 to hour 2 is $20 per hour.
The unit rate for earnings from hour 2 to hour 3 is $10 per hour.
The unit rate for earnings from hour 3 to hour 4 is $10 per hour.
The unit rate for earnings from hour 4 to hour 5 is $10 per hour.

Therefore, the unit rate for earnings is $10 per hour.