There are 10 bird feeders in total. So if Bob builds 10 Jake builds 0. If Bob builds 9 then Jake builds 1. If Bob builds 8 then Jake builds 2 and so on.
The bill is issued on the 3rd.
It is due 8 days later, this means that it is due on the 11th.
There is a one day grace period.
Since Frank paid the bill on the 12th, this means that his payment is received after the deadline. However, he will not be charged for any extra fees as he was still in the grace period when he paid.
Happy new year have a good day
Answer:ññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññ