What is the domain of this relation?
(1, 0)
(-5, -7)
(6, 7)

Asap! i'm not good math and i'm lost.

Solve the inequaliy: (x^2+2)(x−2)^2(6−2x)> 0

Charlie is at an amusement park that has 18 different rides. each ride costs $1.75. the function c(r) = 1.75r represents the total amount of money that charlie will spend if he goes on r rides, but he never goes on the same one more than once. what domain and range are reasonable for the function?