Answer:
Which of the following are prime numbers: (3, 4, 5, 6, 7) 
The answer is B  3, 5, 7
Which of the following are prime numbers: (21, 23, 25, 27, 29)
The answer is D  23, 29
Fill in the blanks: All_____ numbers are considered composite except for the number__. 
The answer is B  even, 2
Which of the following are composite numbers: (31, 33, 35, 37, 39) 
The answer is C  33, 35, 39 
What is a composite number? 
The answer is C  A number with more than two factors
What are the factors of 12? 
The answer is A  1, 2, 3, 4, 6 & 12
Which of the following are composite numbers: (70, 71, 71, 73, 74)
The answer is B  71, 73 
What would you consider the number 1? 
The answer is D  neither
Step-by-step explanation:
A prime number has only two factors, no more no less. 
A composite number has more than two factors. 
The number 1 is neither because it doesn't have two factors to be a prime number, nor does it have more than two factors to be a composite number. It has only one factor. 
I hope this helped.