Hello can anyone help me with this problem?

Encik Ashraf has just venttured into business. As a first step, he plans to start a burger business in
Jront of hus house. At the beginning, he started selling 300 burgers per day.

A total of 150 chicken burgers and 150 beef burgers were sold on the first day and he earned as
much as RM890, 4fter deducting the RMI0 charge to buy plastic packaging. On the second day, a
total of 250 chicken burgers and 50 beef burgers were sold and he earned as much as RM860

Using the matrix method,fnd the selling price, in RM, of a chicken burger anda beef burger.​