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

### Instruction:
A bag of pistachios has 80 pistachios in it.  95 percent have shells, and 75 percent of those have shells that are opened.  How many pistachios in the bag have shells and have an opened shell?

### Response:
95% of the pistachios have shells, so 80 * 0.95 = <<80*0.95=76>>76 have shells.
75% of those have opened shells, so 76 * 0.75 = <<76*0.75=57>>57 have opened shells.
#### 57

