Mary and Nicole had breakfast at a cafe. Muffins cost $2 each, and fruit cups cost $5 each. Mary had 1 muffin and 2 fruit cups. Nicole had 1 muffin and 2 fruit cups. How much did their breakfast cost?

For breakfast, Max bought a muffin for $1.55 and a cup of coffee for $1.30. For lunch, Max had soup, a salad, and lemonade. The soup cost $3.35, the salad cost $4.25, and the lemonade cost $1.65. How much more money did Max spend on lunch than on breakfast?

For breakfast, Tucker bought a muffin for $0.55 and a cup of coffee for $2.20. For lunch, Tucker had soup, a salad, and lemonade. The soup cost $1.95, the salad cost $7.60, and the lemonade cost $0.85. How much more money did Tucker spend on lunch than on breakfast?

For breakfast, Sadie bought a muffin for $2.65 and a cup of coffee for $1.60. For lunch, Sadie had soup, a salad, and lemonade. The soup cost $1.55, the salad cost $4.85, and the lemonade cost $1.80. How much more money did Sadie spend on lunch than on breakfast?$

Rebecca bought 6 cartons of ice cream and 4 cartons of yoghurt. Each carton of ice cream cost $7 and each carton of yoghurt cost $1. How much more did Rebecca spend on ice cream than on yoghurt?

A manager bought lunch for his coworkers. Each person picked either a salad or a burger. The salads cost $5 each and the burgers cost $2 each. If the manager spent $15 and bought lunch for 6 people, how many of each item did he buy?