Answer:
0.35 in.
Step-by-step explanation:
Each ball has a diameter of 2.5 inches. The three balls tightly packed in a column have a total height of 3 * 2.5 inches = 7.5 inches.
Since the balls are tightly packed in the can, the circumference of the can is very close to the circumference of a ball, so we will use the circumference of a ball as the circumference of the can.
C = pi * d = 3.14 * 2.5 inches = 7.85 inches
The difference between the circumference of the can and the height of the can is
7.85 in. - 7.5 in. = 0.35 in.