3. Three art students used a total of 28 - inches of string for an art project. 늘 Each student used 2 1 1 2 inches of string plus an additional 13 inches of string for each day they worked on the art project. Each student worked on the project the same number of days. Which equation could be used to find d, the number of days the students worked on the art project? 4 А 28 B 28 28- +1 28.1 = 3(234) + C D. 28 +