Roger goes to a restaurant with Cathy. They order an appetizer of calamari for $8. Roger has a glass of red wine for $4 and Cathy some white wine for $5. They both order the steak entree for $26 each. The waitress did an excellent job, so Roger and Cathy wanted to tip her 20%. Taxes are included in each menu option. Afterwards, they went to the local ice cream shop and paid $7.56. What tip did they leave the waitress? Do not include $ in answer and round to the nearest tenth. Example, if answer is $19.897, put 19.9.