Answer: The matrix would be
![\left[\begin{array}{ccc}48&19\\\\44&21\end{array}\right]](https://img.qammunity.org/2019/formulas/mathematics/college/8kt58o0exxr3jbsm74ol92gors96clqfxu.png)
Explanation:
Since we have given that
Number of Styrofoam balls bought by Bradley in May = 48
Number of figurines sold by Bradley in June = 19
Number of Styrofoam balls bought by Lupe in May = 44
Number of figurines sold by Lupe in June = 21
So, it will be written as
Purchases Sales
May 48 19
June 44 21
So, the matrix would be
![\left[\begin{array}{ccc}48&19\\\\44&21\end{array}\right]](https://img.qammunity.org/2019/formulas/mathematics/college/8kt58o0exxr3jbsm74ol92gors96clqfxu.png)