What is the value of t(-4) when t(x) = -x - 2

Which of the following represents the range of the graph of f(x) below

What is the value of n in the equation -1/2(2n+4)+6=-9+4(2n+1)

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?