Please help I will give you brainless fide the volume and round to the nearest tenth

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

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

James is playing his favorite game at the arcade. after playing the game 33 times, he has 88 tokens remaining. he initially had 2020 tokens, and the game costs the same number of tokens each time. the number tt of tokens james has is a function of gg, the number of games he plays