Find an expression which represents the sum of (2x+9) and (6x+6) in simplest terms.

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.

Adesigner charges a one time fee of $200 plus $40 an hour for each project. write an expression to represent how much money the designer will make for a project

When is g(x) = 0 for the function g(x) = 5.23x + 4?