<human>:  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?
<bot>: How many meals does Gordon serve in his first restaurant? ** Gordon serves 20 x 7 = <<20*7=140>>140 meals in his first restaurant per week.
How many meals does Gordon serve in his second restaurant? ** He serves 40 x 7= <<40*7=280>>280 meals in his second restaurant per week.
How many meals does Gordon serve in his third restaurant? ** At the third restaurant, he serves 50 x 7 = <<50*7=350>>350 meals per week.
How many meals does Gordon serve in total? ** Therefore, he serves 140 + 280 + 350 = <<140+280+350=770>>770 meals in total per week.
#### 770