Can someone please help me with this? I don’t get it at all even with the notes.

Question 5 spring semester final exam math evaluate

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.

Aright cylinder has a diameter of 8 m and a height of 6m. what is the volume of the cylinder