The answer is F.)
Approximately 50
Answer: x=1 or x=-3
Step-by-step explanation:
Quadratic formula is 
a=1 b=2 c=-3
Substitute

3/10 you go by how many decimal points to move over... 0.1 one tenth.. 0.01 one hundeth an soo on.
Answer:
they are not like terms
Step-by-step explanation:
This is a sampling technique used when natural groupings are evident in a statistical population. It is often used in marketing research.