What is the range of the function f(x)=2x-3, when the domain is {-9,-3,1}?

Okay so i didn't get this problem petro bought 8 tickets to a basketball game he paid a total of $200 write an equation to determine whether each ticket cost $26 or $28 so i didn't get this question so yeahyou have a good day.

Which coefficient matrix represents a system of linear equations that has a unique solution ? options in photo*

What is the solution to the system of equation graphed belowa.(0,-4)b.(2,5),1),-3)