Hi,
Solving:

Answer: The statement is true for any value of x.
Hope this helps.
r3t40
Answer:
It's C
Step-by-step explanation:
It's definitely not A or B. And I know that D is too much so I know that C is the right answer. Hope it helps!
Answer:
0.60
Step-by-step explanation:
find the probability it is a 2:
0.40 / 1 = 0.4 or 40%
find the probability it isn't a 2:
1 - 0.4 = 0.6
Answer:
Step-by-step explanation:
list of prime numbers from 1-21
2,3,5,7,11,13,17,19
he has 21 students
the only numbers he can divide by is 3 and 7
21/3=7
21/7=3