(Please help me answer all the questions below!)

The matrices show the enrollment of boys and girls on the basketball, lacrosse, and soccer teams in two towns.

A:
If we let matrix A be the matrix for Town A, what is the element
a21, and what does it represent?

B:
If we let matrix B be the matrix for Town B, what is the address of the element that represents the number of girls enrolled in soccer in Town B?

C:
Draw the result of the following below:
Matrix A - Matrix B

D:
Name the matrix you found in the previous problem matrix C. What is element c12, and what information does it tell you about the number of girls enrolled in basketball in Town B compared with Town A?