Answer:
A. No, this is not a valid inference because he asked only 20 families
Step-by-step explanation:
You cannot assume that those are the only families that would want to go; you have to ask all the families.
Answer:
5x
Step-by-step explanation:
=> 6x-x
<u><em>Taking x common</em></u>
=> x(6-1)
=> x(5)
=> 5x
Hi,

Center is (0,0)
Foci are (-3√2,0) and (3√2,0)