Selena has brought some fruit to make a fruit salad

63 students.

Step-by-step explanation:

x students.

34 have science 28 have math 5 math and science 6 neither.

6 neither means there were at least 6 students so our number goes up to 6 students.

34 have science 28 have math 5 have both.

34-5 and 28-5

29 and 23

29+23 is 52 +5 is 57 +6 is 63.

63 students.

HOpe this helps!

Merry Christmas!