Your neighbor goes to the post office once a month and picks up two checks, one for $15,000 and one for $3,000. The larger check takes 4 days to clear after it is deposited; the smaller one takes 7 days. Assume 30 days per month.

1. What is the total float for the month?

2. What is the average daily float?

3a. What is the average daily receipts?

3b. What is the weighted average delay?