Samuel decided to paint the house . he bought 2 cans of paint and one roller for $30 . more help arrived so he went back to the store and bought three more cans of paint and two more rollers for $50 . how much did he have to pay for a can of paint ?
a can of paint will be 10 dollars. the rollers will also be 10 dollars. makes sense with 2 can being 20 and then a roller being 10 equaling 30 dollars. same with 3 cans being 30 and 2 rollers being 20 adding up to 50