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 _____.

Name and briefly describe the tables in the StayWell database.

Which general guideline for naming identifiers should you follow when creating a database and adding objects to it?

Which of the following commands deletes an index?

Coconut oil is a medium chain fatty acid that is solid at room temperature. It does is not absorbed by the liver through the lymphatic system, but is used directly by the liver for energy and is not stored as fat.

When renaming columns for a view, you include the new column names in _____ following the name of the view.

One can successfully design a database system without fully understanding the concept of functional dependence.

Which type of fiber has been scientifically shown to reduce dietary cholesterol by consuming oats and barley?

The CREATE VIEW command includes the words CREATE VIEW, followed by the name of the view, the word ____, and then a query.