There seems to be a typing error, Amigo-- the grammar is a little strange.
There's not enough context for me to be sure, but perhaps it means that Mary is staring hard, concentrating on her daughter's 10-cent coin, rather than asking her the necessary questions about her activities.
I got this dialog from a TV movie,the movie is about a underage girl who are scouted and got into modeling business,the boss of that agency has misleaded that girl doing something beyond on the internet. The girl's mom found a big paycheck on her daughter's desk one day. And she was questioning with the boss of the agency. The boss says that dialog.