algebra 2 help Please?

1. The name of an algebraic property and an example are given. Which one is incorrect?

Associative Property of Multiplication 5(3*2) = (5*2)3

Commutative Property of Addition 4+3 = 3+4

Identity Property of Multiplication 4*1 = 4

Transitive Property of Equality, if a = b and b = c, then a = c

2. If the vertex of a parabola is (6,1) what is the equation for the axis of symmetry? (Assume this parabola opens upward.)

y = 6

x = 6

y = 1

x = 1

3. With a tail wind, a plane traveled 800 mi in 5 hours. With a head wind, the plane traveled the same distance in 8 hours. Which system of equations could be used to solve this problem?

(s + w)5 = 800 and (s - w)8 = 800

(s - w)5 = 800 and (s + w )8 = 800

5s + 8w = 800 and 5s - 8w = 800

none of the above

thanks alot