Which of the following statements are true? all square matrices are diagonal matrices. all diagonal matrices are square matrices. the size of any square matrix is m x m, where m is a positive integer. all coefficient matrices are square matrices.

All diagonal matrices are square matrices.

The size of any square matrix is m x m, where m is a positive integer.

0.6, 3/5, and 6% are the 3 same portion.

but, when they're all changed to a decimal they would equal to 0.6.

hope this , good luck!

could you provide figure.