[Gabe]

1. 3 levels
2. Giles Corey
3. petty cash account
4. x^2 (x+2)(x+2)=0; x=0, x=-2
5. 3 times the Avogadro's number (6.022 X 10^23) which equals 1.807 X 10^24
6. President Harry Truman
7. Jack Bauer