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It appears that you are working on a matrix multiplication problem involving the sales of electronics in two cities, and you're calculating the total sales using the matrices.

Let's go over the steps based on the question:

1. **Matrix $ S $**: This is the sales matrix representing the number of laptops, monitors, and tablets sold in Baltimore and Kansas City. This matrix was correctly set up as:

   \[
   S = \begin{bmatrix} 13 & 16 \\ 18 & 8 \\ 12 & 20 \end{bmatrix}
   \]

2. **Matrix $ P $**: This represents the prices of the electronics, which are laptops, monitors, and tablets. Each row corresponds to the price of one product (laptops, monitors, tablets):

   \[
   P = \begin{bmatrix} 1510 & 590 & 460 \end{bmatrix}
   \]

3. **Multiplication $ P \cdot S $**:
   To find the total sales in dollars for Baltimore and Kansas City, we need to multiply matrix $ P $ by matrix $ S $.

Let me calculate $ P \cdot S $ for you.It seems like I can’t do more advanced data analysis right now. Please try again later. However, if you'd like, I can guide you through solving the matrix multiplication step manually to find the correct total sales for each city. Let me know if you'd like me to walk you through it. 

Also, feel free to upload more questions or ask for any other help.

An electronics store lists the sales (in thousands) of certain products in two cities. During the period, laptops sold for $1510, monitors for $590, and tablets for $460. Sales numbers are given for laptops, monitors, and tablets in two cities, Baltimore and Kansas City. The task is to use matrices to compute the total sales in dollars for each city.

Learn how to calculate total sales for an electronics store using matrix multiplication. The problem involves sales in two cities for laptops, monitors, and tablets, with given unit prices. Suitable for students in Grades 9-12 learning matrix operations and applications.

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