joe and james are selling pies for a school fundraiser. Customers can buy blueberry pies and blackberry pies. Joe sold 5 blueber
ry pies and 10 blackberry for a total of $135. James sold 1 blueberry pie and 9 blackberry pies and 10 blackberry pies for a total of 104. Find the cost each of one blueberry pie and one blackberry pie.