Need help with algebra, and 8th grade math? anyone who remembers algebra please help?

Question

so im doing this summer packet and i forgot stuff. how do you factor something like this: xsquared-11x+28?

what are the formulas for midpoint and distance?

what do they mean by this: Find one of the many proofs of the Pythagorean Theorem.

like a2+b2=c2?

and where can i find the definitions for these:

1) Associative Property of Multiplication

2) Associative Property of Addition

3) Commutative Property of Multiplication

a. Commutative Property of Addition

5) Distributive Property

6) Addition Property of Equality

7) Multiplication Property of Equality

8) Zero Property of Multiplication

Answer 1

ewwwwwww i hate math. sorry i cant help u here, but thanks for the 2points

Answer 2

wikipedia

Answer 3

http://www.math.com/school/glossary/glos...

that had definitions for all

a=1 b=2 c=3 haha