It won’t let me answer questions I don’t know why

This is because they are already answered. This has happened to me to but don't worry. You can also comment if it makes you feel better. I also comment questions because i just want to help people. If the answer button is available I will attempt to answer.

Hopefully this helps!

P.S. The Wi-Fi problem with an error means that you have to refresh, shut down, restart, connect Wi-Fi or try to close the tab and open it again.

welp you either gots eh banned for doing dumm stuff or they already answered it for you...

step-by-step explanation: yes

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b