8ballzzzzzz 8ballzzzzzz 19-11-2020 Mathematics contestada Students are selling muffins at a school bake sale. One muffin costs $0.28, 2 muffins cost $0.41, 3 muffins cost $0.54, and 4 muffins cost $0.67. since each additional muffin costs $0.13 how much will 7 muffins cost?