Answer:
For the first row, where bob builds 10 bird feeders, Jake would not have to build any because Bob built all 10 of the feeders. When Bob builds 9 of the 10 feeders, Jake needs to build 1 feeder so that there are 10 feeders total, and so on. When Bob builds 8 feeders, Jake has to build 2.
Step-by-step explanation:
