Finalized my Expressions Worksheet.  Answer 5 required several more variables to be declared.  While the writing of the code was not too difficult, what I was unsure of initially was if the discount needed to come off the original price with tax or the original price without tax, when figuring out the total price with tax.  I believe I got that figured out.  I figured the tax on the original price, and then the discount on the original price.  I subtracted the discount and added back on the total tax from the original amount.  Concatenating the answer for number 5 seemed a bit complicated; and I’m not sure if there may have been a faster way to do it, while still being able to adjust the variables to different values.  Moving on to the next assignment, and will be up all night working and studying.