Need help please . also due today

The amount of energy it takes to lift a box might be a function of which of the following

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.

In the diagram of circle o, what is the measure of zabc?