Can someone help me with this and try to show the steps

What is the factored form of x2 − 4x − 5? (x + 5)(x − 1) (x + 5)(x + 1) (x − 5)(x − 1) (x − 5)(x + 1)

What is the fewest number of full weeks briyana would have to work to have enough money? 8 weeks9 weeks 10 weeks11 weeks

Select all of the quadrants that the parabola whose equation is y=√x-4 (principal square root) occupies. i ii iii iv