To find the number of boxes Mark has filled, we need to divide the total number of baseballs by the number of baseballs in each box and express the quotient as a mixed number.
Total number of baseballs = 14
Number of baseballs in each box = 12
Dividing 14 by 12, we get:
14 ÷ 12 = 1 with a remainder of 2
So Mark has filled one box completely and has 2 baseballs left over.
Expressing this as a mixed number, we get:
1 2/12
However, we can simplify this mixed number by reducing the fraction to lowest terms:
1 2/12 = 1 1/6
the mixed number that represents the number of boxes Mark has filled is option C) 1 2/12, which is equivalent to 1 1/6.