The second and last one.
6 times four = 24
3 times 8 = 24
(8 plus of minus radical 64 + 216
divided by
6
(8 + or - 16.73320053)/6
54 students in each bus.
Step#1 Subtract 7 from the total of students, the answer is 324
Step#2 Divide 324 by 6, the answer is 54
Therefore the answer is 54 students, hope that helped. <span />