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Suppose the Going Home Club held a fundraiser so they can… go home. They sold cookies for $2 each and brownies for $4 each. At the end of the day, the club leader tells everyone that they raised $4000, and they sold three times as many cookies as they did brownies. Set up (but do not solve) a system of equations to determine the numbers of cookies (\(c\)) and brownies (\(b\)) sold.

In the summer of 1991, Sega launched a bundle of their Genesis video game console with Sonic the Hedgehog. To aggressively sell it, they lowered the price of the bundle from $190 to $150. Suppose marketing data showed that if the price was $190, they would have only sold 390,000 units that summer. Instead, at the new price, they sold 750,000 units that summer. What is the demand function, \(p(x)\), for the Genesis for that summer, where \(p\) is in dollars and \(x\) is the number of bundles sold?   TO DO: Change to “last week of June 1991” and divide all quantities by 10.

Suppose we have a line described by the equation 10x – 2y = 8. If \(x\) were to decrease by 8 units, what would the corresponding change in \(y\) be?

Multiplying a matrix by a single number will not change the number of rows and columns of the matrix.

The following augmented matrix, in reduced row-echelon form, represents a system of linear equations in two variables, \(x\) and \(y\). This system has [n] solutions.

Suppose \(A\) is a 4×3 matrix and \(B\) is a 3×4 matrix. What are the dimensions of \(29A\) ? If these calculations are not possible, just put DNE in each blank.   Your answer: [r] x [c]

Suppose \(A\) is a 4×3 matrix and \(B\) is a 3×4 matrix. What are the dimensions of \(A^T – B\) ? If these calculations are not possible, just put DNE in each blank.   Your answer: [r] x [c]

Read the following: On exam day, you will be expected to be on Canvas on your MAIN device. You will be on ZOOM on your SECONDARY device (i.e. your smartphone). On Zoom, I must be able to see you, your computer screen, and your workspace all at the same time. No notes are allowed, so you must study well ahead of time. Only approved calculators (TI 83 or TI 84) are allowed. NO TI-Nspires. You must have the ability to quickly scan and upload your written work for the workout questions to Gradescope. Be sure to test this out AHEAD of time. Use the official Gradescope app if you want to use your phone to take pictures. You are responsible for ensuring that your submissions are readable and openable. What I cannot open or read, I cannot give credit for. You can either start the exam at 7 PM, at 7:15 PM or at 7:30 PM on exam day. You must show up 10 minutes before your desired start time. Late arrivals will stay in the waiting room until the next start time. If anyone shows up past 7:20, they may have to wait until ALL other students have been checked in.   Did you read and understand the above?

According to the Chemical Digestion Map, which of the following is the major “food form” of proteins (select all that apply) 

According to the Chemical Digestion Map, which of the following is an absorbable unit of lipids (select all that apply)