Annabeth has $29.00 to spend at the sporting goods store. She buys a T-shirt that costs $15.32. She also wants to buy a soccer ball for $12.86, a baseball cap for $8.39, a set of shin guards for $14.98, or a water bottle for $5.93. Use the equation for $15.32 + c=$29.00, where c is the item cost, to select the most expensive item she can buy.