PLS HELP ASAP!!
1. {(x, y): y = √x - 3
The domain of the set above is represented by _____.

{x: x ≥ 3}
{x: x ≥ 0}
{x: x ≤ 3}
{x: x ∈ R}
2. Given: F(x) = 5x - 6 and G(x) = x - 4

(F o G)^-1 =

( x + 10)/5
( x + 26)/5
-5 x + 26
3. Given: F(x) = 5x - 6 and G(x) = x - 4

G^-1 o F^-1 =

-6 x + 10
( x + 10)/5
( x + 26)/5