Answer:
Step-by-step explanation:
Since we have given that
Number of styrofoam balls bought by Bradley in May = 48
Number of toy figurines sold in May = 19
Number of styrofoam balls bought by Lupe in June = 44
Number of toy figurines sold in June = 21
So, we need to make a matrix that represents all of their May purchases and their June sales :
So, it is given by
May June
Purchases Sales
Bradley 48 19
Lupe 49 21
Thus, we can define a 2x2 matrix in which row 1 represents Bradley and row 2 represents Lupe. The columns then represent May and June. To distinguish between purchase and sale, we will show sale by a positive number and sale with negative; therefore the final matrix will be
![\left[\begin{array}{ccc}48-19\\44-21\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D48-19%5C%5C44-21%5Cend%7Barray%7D%5Cright%5D)