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

### Instruction:
Gordon owns 3 restaurants, his first restaurant serves 20 meals, his second restaurant serves 40 meals, and his third restaurant serves 50 meals per day. How many meals do his 3 restaurants serve per week?

### Response:
Gordon serves 20 x 7 = <<20*7=140>>140 meals in his first restaurant per week.
He serves 40 x 7 = <<40*7=280>>280 meals per week in his second restaurant.
And he serves 50 x 7 = <<50*7=350>>350 meals per week in his third restaurant.
Therefore, the total meals he serves in his 3 restaurants is 350 + 280 + 140 = <<350+280+140=770>>770.
#### 770