Which of the matrixes can be added together? Choose all that apply.

Both matrices are 1 x 4 matrices. This notation says there is 1 row and 4 columns. The number of rows must match up, as well as the number of columns, in order for matrix addition to be possible. This is so the corresponding elements pair up and add together. For instance, the 5 and -2 pair up and add together for matrices A and C.

you probably already have the answer but anyways it's b. 15.0

step-by-step explanation:

if you're trying to figure out how much each ounce cost it would be 0.20

cents each ounce