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

### Instruction:
Papi Calot prepared his garden to plant potatoes. He planned to plant 7 rows of 18 plants each. But he still has a bit of room left, so he’s thinking about adding 15 additional potato plants. How many plants does Papi Calot have to buy?

### Response:
Let’s first calculate the number of plants that Papi had planned: 7 rows * 18 plants/row = <<7*18=126>>126 plants
Now let’s add the other plants: 15 plants + 126 plants = <<15+126=141>>141 plants
So Papi has to buy 141 plants.
#### 141