Read the passage and answer the given question.

The parking rates of a shopping mall for 4-wheelers and 2-wheelers are as follows:

Two-wheelers pay a flat fee of $20, and four-wheelers pay a flat fee of $50 for five hours. The charge for four-wheelers increases by $20 for each extra hour. The charge for two-wheelers increases by $10 for each additional hour.

If Sam parks his motorcycle for 8 hours, how much will he pay?