Final answer:
The ampere rating of the feeder is 63 amperes.
Step-by-step explanation:
To find the ampere rating of the feeder, we need to add the amperes of the continuous lighting load and the single motor load. In this case, the continuous lighting load is 39 amperes and the single motor load is 24 amperes. So, the ampere rating of the feeder is 39 + 24 = 63 amperes.