Below is an instruction that describes a task. Write a response that appropriately completes the request in English. Please answer in English.

### Instruction:
A play was held in an auditorium and its ticket costs $10. An auditorium has 20 rows and each row has 10 seats. If only 3/4 of the seats were sold, how much was earned from the play?

### Response:
There are 20 x 10 = <<20*10=200>>200 seats in the auditorium.
Only 200 x 3/4 = <<200*3/4=150>>150 seats were sold.
Thus, 150 x $10 = $<<150*10=1500>>1500 was earned from the play.
#### 1500