Jesse, Maria and Charles went to the local craft store to purchase supplies for making decorations for the upcoming dance at the high school. Jesse purchased three sheets of craft paper, four boxes of markers and five glue sticks. His bill before taxes was $24.40. Maria spent $30.40 when she bought
six sheets of craft paper, five boxes of markers and two glue sticks. Charles purchases totaled $13.40 when he bought three sheets of craft paper, two
boxes of markers and one glue stick. Determine the unit cost of each item.