A math teacher needs to choose 6 students from a class of 30 to go to the library. How many different groups can she select?

No if groups=No of students/no of students in each groups

answer:   n ≤ -3 or n < -5

step-by-step explanation:

-5 + 2n ≥ -11

+5             +5

2n ≥ -6

2/2 ≤ -6/2

n ≤ -3

-6 - 10n > 44

+6           +6

-10n > 50

-10/-10 50/-10

n < -5

the correct answer is d

hope this