Most exam material will primarily come from: 

Though they haven’t yet achieved an e-commerce-based business status, in the future, StayWell would like to be able to use their database in conjunction with _____.

An example of a relationship between categories in the KimTay database is the relationship between sales reps and customers.

To lower cardiovascular risk it is recommended, by the American Heart Association, that we consume less than ________ of our total daily caloric intake from saturated fat.

StayWell has twelve offices, one to manage each of their twelve rental locations.

The purpose of creating databases indexes is to _____.

Why would you not combine the two tables INVOICES and INVOICE_LINE in the KimTay database?

To ensure the uniqueness of values in a nonprimary key column, you can create an index using the _____.

1.) Solve the following system using Gauss-Jordan elimination. Use a parameter if necessary. \[\begin{align*}x+2y-z&=3\\3x-y+4z&=-1\\-x+5y-6z&=7\end{align*}\] 2.) Find the product \(AB\) if \[A=\begin{bmatrix}1&3&7\\2&-1&0\end{bmatrix}\qquad B=\begin{bmatrix}2&-1\\3&4\\1&-5\end{bmatrix}\] 3.)  For which value or values of \(a\) does the following matrix fail to have an inverse? \[\begin{bmatrix}a-2&3\\5&a-4\end{bmatrix}\] 4.) Find the inverse of the following matrix. \[\begin{bmatrix}1&0&-1\\1&-2&3\\2&1&0\end{bmatrix}\] Please upload all work as a single PDF to this question. Make sure you show the front and back of the first page to the webcam as well.

KimTay sells _____.