Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:
Calculate the total cost of a dinner for 6 people.

### Input:
The dinner consists of grilled salmon, mashed potato, and roasted vegetables. Each person will get one serving of fish and two sides each.

### Response:
The total cost of the dinner would be $162, assuming the price of one serving of grilled salmon is $30, the mashed potato is $6 per person, and roasted vegetables is $4 per person.