### Home > PC > Chapter 12 > Lesson 12.2.1 > Problem 12-43

12-43.

Double each entry in matrix *A*.

Multiply each row in matrix *A* by the column in matrix *C*.

Do the rows of matrix *C* have the same number of entries as the columns of matrix *A*?

Multiply the rows of matrix *B* by the columns of matrix *D*.