Question 1: Part-time job is not measured by time, but by what contract you signed with the company. If it is a part-time job, it means that the company has its own long-term employees. While helping him, you are allowed to have your first job, and there is no loss for you.

Question 2: One hour 15 yuan, 20 yuan has more than 10 people. Such salary depends on your present position. If you are a college student, you have your first job. It is more reasonable if the class is less than 3 hours a day.

If you don't have your first job. I have graduated and entered the society, and I need formal income. This kind of salary is unreasonable. I suggest changing jobs or looking for the first job.

Question 3: At present, all educational institutions charge a student 20 yuan for an English class in 50 yuan, which means that the income of 10 can reach 249 yuan an hour. The more people, the lower the income, and the salary of regular teachers is quite high. Now private tutoring is 20 to 50 an hour. It's really not worth teaching there.

You can ask me any other questions. I study law. I hope my analysis can help you.