MS Excel 2013 sheet If statements

I am working on the excel sheet excerise and I am have issues with the following:

Column F: "Amount Due"

If the value is less that $100 I need the amount to show instead of the error message.

Column F: "Action"

I've got this almost working. Again here if the amount is less the $100 and it is not "Paid" a blank cell should appear in the "Action" column

Here is what I am trying to do:

Discount (Column E): Use a nested form of the If function to display 15% if Amount is greater than $300., 10% if Amount is greater than $100

Amount Due (Column F): calculate Amount Due (Amount minus the discount of Amount).

Date Due (Column G): calculate Date Due (Inv. Date plus 30 days).

Status (Column I): Use a nested form of the If function to display “Late” if B3 (system date) is greater than Date Due and Paid is not Yes. Otherwise the cell should appear blank (use 2 double quotes for blank “”). An absolute reference will be required in your formula.

Action (Column J): Use a nested form of the If function to display “Collection” if Status is “Late” and Amount Due is greater than $100.00; “Write Off” if Status is “Late” and Amount Due is less than or equal to $100.00. Otherwise the cell should appear blank (use 2 double quotes for blank “”).
146jrc03.xls