Answer:
21
Step-by-step explanation:
A prime number has only two factors: 1 and itself.
A composite number has more than two factors. The number 1 is neither prime nor composite.
B. 21
31 is the only number that can be made by multiplying another number other than 1 and itself.
1x21=21
3x7=21
all the other options only have 2 factors
3x=21
x=21/3
x=7
hope it helps
Answer: Y=() x-7
C. $45
926% and I'm pretty sure the other one is 0.7
Step-by-step explanation: For a you have to remove the decimal. for b you have to remove the %
