The Sprats Eat Out

     Jack Sprat and his wife like to dine out at their favorite romantic restaurant, Nikki's, once a month. Their favorite foods to order are pepperoni pizza, Southern fried chicken, and big, juicy hamburgers. Though as the famous nursery rhyme says, they do share in the eating of the food,.they always order two of the three items each time they go.

          

     For example, 2 months ago they ordered the pizza and chicken dishes, paying a total of $13.40 for their meal. One month later, they chose the chicken and hamburger, paying $10.75 to the cashier. This month, they dined on the hamburger and pizza, which cost them $13.25.

     With the above information, please find the price for each item if bought individually.