Answer:
2/7
Step-by-step explanation:
1x4=4
2x7=14
4/14 divided by 2 is 2/7 (simplified)
Total students = 28
Students with brown eyes = 19
students wear glasses = 13
Not brown eyes or no glasses = 7
Not brown eyes = 28 - 19 = 9
Not wearing glasses = 28 - 13 = 15
Not brown eyes and wearing glasses = 15 - 9 = 6
Brown eyes and wearing glasses = 13 - 6 = 7 <==== answer
The square root of 4 is 2 because 2•2 is 4
