Which equation represents the axis of symmetry of the graph of the
equation y = x2 + 4x - 5?
(1) x = -2 (3) y = -2
(2) x = 4 (4) y = 4

I'm terrible at math any here is appreciated.

Asalesperson earns $320 per week plus 8% of her weekly sales. the expression representing her earnings is 320 + 0.08x. which of the following describes the sales necessary for the salesperson to earn at least $1000 in the one week?

He concluded that a heavier object dropped from the same height as a lighter object will land