Can someone help with this question please

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.

Math question.. plz me .. best answer all

Eden has a part time job. she is paid ? 7.20 an hour the week she worked 18 and a half hours how much is she paid